Christ named not a price for His service to men

Numbers 32:18-19 (ESV)
We will not return to our homes until each of the people of Israel has gained his inheritance. [19] For we will not inherit with them on the other side of the Jordan and beyond, because our inheritance has come to us on this side of the Jordan to the east."

We will not return to our homes until each of the people of Israel has gained his inheritance. Christ also forsook His home in heaven He may come down to the earth, and returned not to His Father until each of His brethren gained the inheritance of eternal life. The work was finished on the cross, and that is why our Lord returned to His home. There is no more battles to be fought or work to be done. Christ has finished the work once and for all, and all that is left for us is to believe on that work. If His work in gaining our inheritance was not complete, Christ would have had to stay on earth until now. But when He died for us, His inheritance became ours according to the New Testament of His blood. What work shall we then add to His works so that we may inherit the Kingdom of God? There are no other works, but the works of trusting in Him.

It is to be noted here that they said, "until each of the people has gained his inheritance". Christ's work has also granted eternal inheritance to each and every single individual that believes in Christ. Christ cares for the individual, as He said:
Matthew 18:12-13 (ESV)
What do you think? If a man has a hundred sheep, and one of them has gone astray, does he not leave the ninety-nine on the mountains and go in search of the one that went astray? [13] And if he finds it, truly, I say to you, he rejoices over it more than over the ninety-nine that never went astray.
Christ cared for the one woman in the well that had 5 husbands. He cared for Mary who had seven demons. He cared for Zecchaus that climbed on the tree to see Christ. Christ cared for each lost individual, died for each individual's sins, that they may each inherit the Kingdom of God and have his or her portion in it. Christ does not deal with us as a group, but as an individual, that we may each be able to say that Christ is 'my own Lord and God, and my own inheritance'.

Although the inheritance of eternal life is already ours by the work of God's Son, this does not mean that all work is finished in us. There remains the work of sanctification, that we may become worthy heirs of the Kingdom. If this work was left to us, no man would be saved, but we thank God that the Holy Spirit has come upon us to do this work for us. It is the Spirit of Christ who completes our salvation. He is our Helper who conforms us to the image of Christ. As it is written:
John 14:16-18 (ESV)
And I will ask the Father, and he will give you another Helper, to be with you forever, [17] even the Spirit of truth, whom the world cannot receive, because it neither sees him nor knows him. You know him, for he dwells with you and will be in you. [18] "I will not leave you as orphans; I will come to you.
And,
Matthew 28:20 (ESV)
And behold, I am with you always, to the end of the age."
Holy Spirit will dwell with us, working with us, until we have fully grasped the promised inheritance that God has given to us. He has been sent to guide us to the Way to eternal life, keeping our souls pure that we may not continue in sin. He will not leave us until the job is done. It is He that began this good work in us, and it is He who will bring it to completion. Great thing is, even once the work is done, the Spirit will not depart from us to His home, but will dwell with us forever. Not only the Spirit, but our Triune God will dwell with us forever, as it is written:
John 14:23 (KJV)
Jesus answered and said unto him, If a man love me, he will keep my words: and my Father will love him, and we will come unto him, and make our abode with him.
Revelation 21:3 (KJV)
And I heard a great voice out of heaven saying, Behold, the tabernacle of God is with men, and he will dwell with them, and they shall be his people, and God himself shall be with them, and be their God.
It should surprise us that our Holy God should make man His new home in which He dwells. As it is written:
1 Kings 8:27 (KJV)
But will God indeed dwell on the earth? behold, the heaven and heaven of heavens cannot contain thee; how much less this house that I have builded?
The whole universe is not large enough for our great God to dwell in. How much less was the temple of gold that Solomon built? And how much further less than are the mortal bodies of lowly, sinful men? Why does God forsake the heavens to dwell in the manger and the tomb that is man? It is because He loves man. Reuben and Gad went back to their homes after their job was done for the brethren, but God leaves the heavens forever to make His dwellingplace with man forever. Christ became a man for this reason, forsaking equality with God that He may become one of us, forever. Why did He do this? To die as a substitute for our sins, yes, but even more, that He may sympathize with us by undergoing our sorrows and sufferings, that He may taste death as we do. See then how much He loved man that He was willing even to partake in our death. Let us therefore offer our bodies holy temples for His Spirit to dwell in, our hearts and minds abounding in thanksgiving.

We will not inherit with them on the other side of Jordan and beyond. Reuben and Gad had no intention of inheriting the land of their brethren. They were fighting only for the inheritance of their brethren. They recognized that they had already received the inheritance from God on this side of the Jordan. They had already received their rest, as Joshua would speak later:
Joshua 1:12-13 (KJV)
And to the Reubenites, and to the Gadites, and to half the tribe of Manasseh, spake Joshua, saying, [13] Remember the word which Moses the servant of the Lord commanded you, saying, The Lord your God hath given you rest, and hath given you this land.
Though they have already received their rest, inheritance and their land for their children, these Reubenites and Gadites were still willing to fight, not for their own gain, but for the rest of their brethren. This was noble in the sight of God and Moses.

Thus Christ fought the war with death for not His own inheritance, but for the rest and the inheritance of His brethren. He was the Son of God, and therefore already had the inheritance as the sole and eternal heir. Christ did not need to fight for us, but He fought for our benefit, out of love. He went further than these two tribes, in that He died so that His whole inheritance could be made ours. Not that He needed to gain something by dying for us. Do we say "Oh, but He gained the name above all names"? But He was already equal with God and the whole earth was His and He was the King of the universe. He had God as His eternal inheritance, always in the bosom of His Father, always pleasing Him. By becoming a man and dying He lost more than He gained, and He gave more than He received. He didn't need to become His creature to suffer the shame. He didn't need to be tempted by the devil, and suffer such scorn by the things He made. He didn't need to suffer hunger or sleep. He didn't need to heal and help people, as though they deserved help. And He didn't need to bear the sins and the guilt of people and be crushed. Why did He do it? For the rest and the inheritance of His brethren; Because He loved us. He died for our benefit, not for His. How glorious is His love for us.

Shall we not then, the disciples of Christ, do as He did, and do those things which are for the benefit of others, though they are not beneficial to us? This is our reasonable duty as believers. And this is the heart of the servant. A servant's desire is to please the master and not himself. A master's pleasure is the servant's pleasure. As Christ who is our Master came down to the earth to serve us, though He didn't need to, we ought to offer others our free service. Let us love others, especially our brethren, and fight for them and work with them, even if it doesn't profit us. Let us have the selfless hearts that say: 'their joy is our joy, and their glory is our glory'.

Reuben and Gad was willing to give up the inheritance of the land across the Jordan though they had the right to take some of it, because they were going to fight with the rest of Israel. Reuben and Gad were satisfied with what they have, which was the land that was on this side of the Jordan. We must learn their contentment. As it is written:
Hebrews 13:5 (KJV)
Let your conversation be without covetousness; and be content with such things as ye have: for he hath said, I will never leave thee, nor forsake thee.
Reuben and Gad could have replied to Moses, 'Okay, we'll go and fight with the brethren. But give us a bit of the land because we fight with them. We won't go except under these conditions'. They could have spoken thus wickedly. But they desired not more than they had. To them, though it was on this side of the Jordan, and near to the wilderness, what God had given them was enough and beautiful in their sight. We also do well to watch for covetousness, be content with what we have, and not desire even those things we have right to have. Let us pray that God may give the grace of contentment. Perhaps Reuben and Gad considered the Levites who had no inheritance at all on either beyond or on the wilderness side of the Jordan, but whose only inheritance was God Himself and the priesthood. As the Levites were, Reuben and Gad resolved to be content with having Yahweh as their God. It should also be enough that Jesus is our God. We have the right on this world to work hard and have the things that we desire. That is our portion. But though we have the right, we must not always excise the right, because we ought to be content with having God as our treasure. He is our inheritance, and He gives us the things that we need. Let us not ask for more. Even when we labour in the things of God, let us not ask for wages, knowing that we are forever debtors to Jesus Christ. We owe Jesus Christ everything, and more, for we deserved not the grace He has shown us until now. Having received this free gift of eternal life, let us not name a price to our labour for our brethren. Reuben and Gad offered not a price, but freely offered their time, labour and their lives for the brethren. Let us imitate their faith, and live our lives for others.