Deuteronomy 7
3“And do not intermarry with them – you do not give your daughter to his son, and you do not take his daughter for your son,

4for he turns your sons away from following Me, to serve other mighty ones. Then the displeasure of יהוה shall burn against you and promptly destroy you.

Ezra 9
10“And now, O our Elohim, what do we say after this? For we have forsaken Your commands,

11which You have commanded by Your servants the prophets, saying, ‘The land which you are going in to possess is a land unclean through the uncleanness of the peoples of the lands, by their abominations with which they have filled it, from one end to another, by their uncleanness.

12‘And now, do not give your daughters as wives for their sons, nor take their daughters to your sons. And do not seek their peace or wealth ever, so that you are strong, and shall eat the good of the land, and leave it as an inheritance to your children forever.’

13“And after all that has come upon us for our evil deeds and for our great guilt, since You our Elohim have held back the rod upon our crookednesses, and have given us such deliverance as this,

14should we turn back, to break Your commands, and join in marriage with the people of these abominations? Would You not be enraged with us until You had consumed us, so that there would be no remnant or survivor?

15“O יהוה Elohim of Yisra’ĕl, You are righteous, for we are left as a remnant, as it is this day. See, we are before You, in our guilt, for there is no one to stand before You concerning this!”