Joshua 22:25

25 O! ye sons of Reuben, and ye sons of Gad, the Lord hath set a term, the flood Jordan, betwixt us and you; and therefore ye have no part in the Lord; and by this occasion your sons shall turn away our sons from the dread of the Lord. (and they say, O! ye sons of Reuben, and ye sons of Gad, the Lord hath set a border, the Jordan River, between us and you; and so ye have no part in the Lord; and in this way your sons and daughters shall turn away our sons and daughters from the fear of the Lord/from reverence for the Lord.)

Joshua 22:25 Meaning and Commentary

Joshua 22:25

For the Lord hath made Jordan a border between us and you,
&c.] And by it separated them from them, as if they were a distinct people; not that this was really the case, but so they feared it would be represented in time to come; for though Jordan was the border of the land of Canaan, strictly so called, eastward, ( Numbers 34:12 ) ; yet it did not exclude the land of the two tribes and a half from being part of the land of promise; for the Amorites, which before inhabited it, and were driven out of it, were Canaanites, and were one part of the people, whose land the Lord promised to Abraham, ( Genesis 15:18-21 ) ;

ye children of Reuben, and children of Gad, have no part in the Lord;
in his covenant and promises, in his worship, word, and ordinances; these are things you have nothing to do with, being separated from us his peculiar people; or "have no part in the Word of the Lord", as the Targum, the promised Messiah, being without, or separated from him, as the Gentiles are said to be, ( Ephesians 2:12 ) ;

so shall your children make our children cease from fearing the Lord;
from worshipping the Lord, the fear of the Lord being often put for the whole worship of God, external and internal, ( Ecclesiastes 12:13 ) ; by behaving in the above manner towards them, they would be the cause and occasion of their apostasy from the true God, and it would be in effect to say to them, "go, serve other gods", ( 1 Samuel 26:19 ) .

Joshua 22:25 In-Context

23 if we builded this altar for intent of trespassing, that is, of idolatry, the Lord keep not us, but punish he us in this present time; and if we did by that mind, that we should put thereon burnt sacrifice[s], and sacrifice(s), and peaceable sacrifices, he seek, and deem; (that if we have built this altar with the intention of trespassing, that is, for idolatry, the Lord should not allow us to live, and he should punish us right now; yea, if we did it for this purpose, so that we could put on it burnt sacrifices, and sacrifices, and peace offerings, or grain offerings, let him seek it out, and judge us right now;)

24 and not more, rather, (that) we did it with this thinking and treating, that we should say thus, (If) Your sons hereafter shall say to our sons, What is to you and to the Lord God of Israel? or, What claim (have) ye to be of his people?

25 O! ye sons of Reuben, and ye sons of Gad, the Lord hath set a term, the flood Jordan, betwixt us and you; and therefore ye have no part in the Lord; and by this occasion your sons shall turn away our sons from the dread of the Lord. (and they say, O! ye sons of Reuben, and ye sons of Gad, the Lord hath set a border, the Jordan River, between us and you; and so ye have no part in the Lord; and in this way your sons and daughters shall turn away our sons and daughters from the fear of the Lord/from reverence for the Lord.)

26 Therefore we guessed (it) better, and we said, Build we an altar to us, not into burnt sacrifices, neither to sacrifices to be offered, (And so we thought about it, and we said to each other, Let us build an altar for ourselves, not for burnt sacrifices, nor for sacrifices to be offered,)

27 but into witnessing betwixt us and you, and betwixt our children and your generation, that we serve the Lord, and that it be of our right to offer burnt sacrifices, and sacrifices, and peaceable sacrifices; and that your sons say not tomorrow to our sons, No part in the Lord is to you. (but as a witness between us and you, and between our children and your children, that we serve the same Lord, and that it be our right to offer burnt sacrifices, and sacrifices, and peace offerings, or grain offerings; and so your children shall not be able to say to our children tomorrow, and the next day, There is no part for you in the Lord.)