New Revised Standard Version
Therefore do not give your daughters to their sons, neither take their daughters for your sons, and never seek their peace or prosperity, so that you may be strong and eat the good of the land and leave it for an inheritance to your children forever.’

Contemporary English Version
And we were warned not to let our daughters and sons marry their sons and daughters. Your prophets also told us never to help those foreigners or even let them live in peace. You wanted us to become strong and to enjoy the good things in the land, then someday to leave it to our children forever.

New American Bible
Do not, then, give your daughters to their sons in marriage, and do not take their daughters for your sons. Never promote their welfare and prosperity; thus you will grow strong, enjoy the produce of the land, and leave it as an inheritance to your children forever.

Douay-Rheims Bible
Now therefore give not your daughters to their sons, and take not their daughters for your sons, and seek not their peace, nor their prosperity for ever: that you may be strengthened, and may eat the good things of the land, and may have your children your heirs for ever.

Now therefore give not your daughters to their sons, and take not their daughters for your sons, and seek not their peace, nor their prosperity for ever: that you may be strengthened, and may eat the good things of the land, and may have your children your heirs for ever.

give not

Exodus 23:32 Thou shalt not enter into league with them, nor with their gods.

Exodus 34:16 Neither shalt thou take of their daughters a wife for thy son, lest after they themselves have committed fornication, they make thy sons also to commit fornication with their gods.

Deuteronomy 7:3 Neither shalt thou make marriages with them. Thou shalt not give thy daughter to his son, nor take his daughter for thy son:

Joshua 23:12,13 But if you will embrace the errors of these nations that dwell among you, and make marriages with them, and join friendships: . . .

nor seek their peace

Deuteronomy 23:6 Thou shalt not make peace with them, neither shalt thou seek their prosperity all the days of thy life for ever.

2 Chronicles 19:2 And Jehu the son of Hanani the seer met him, and said to him: Thou helpest the ungodly, and thou art joined in friendship with them that hate the Lord, and therefore thou didst deserve indeed the wrath of the Lord:

2 John 1:10,11 If any man come to you and bring not this doctrine, receive him not into the house nor say to him: God speed you. . . .

that ye may

Deuteronomy 6:1,2 These are the precepts, and ceremonies, and judgments, which the Lord your God commanded that I should teach you, and that you should do them in the land into which you pass over to possess it: . . .

Joshua 1:6-9 Take courage, and be strong: for thou shalt divide by lot to this people the land for which I swore to their fathers, that I would deliver it to them. . . .

and eat

Isaiah 1:19 If you be willing, and will hearken to me, you shall eat the good things of the land.

and leave it

Genesis 18:18,19 Seeing he shall become a great and mighty nation, and in him all the nations of the earth shall be blessed? . . .

Psalm 112:1,2 Blessed is the man that feareth the Lord: he shall delight exceedingly in his commandments. . . .

Proverbs 13:22 The good man leaveth heirs, sons, and grandsons: and the substance of the sinner is kept for the just.

Proverbs 20:7 The just that walketh in his simplicity, shall leave behind him blessed children.