Thematic Bible: Who not to marry

In those days also I saw Jews that had married wives of Ashdod, of Ammon, and of Moab. And their children spoke half in the language of Ashdod, and could not speak in the Jews' language, but according to the language of each people. And I contended with them, and cursed them, and smote certain of them and plucked off their hair, and adjured them by God saying, Ye shall not give your daughters to their sons, nor take their daughters for your sons or for yourselves. read more.
Did not Solomon king of Israel sin by these things? Yet among the many nations was there no king like him, who was beloved of his God, and God made him king over all Israel; but even him did foreign wives cause to sin. And should we hearken to you to do all this great evil, to act unfaithfully to our God by marrying foreign wives?

Now when these things were completed, the princes came to me, saying, The people of Israel, and the priests and the Levites, have not separated themselves from the peoples of the lands, according to their abominations, even of the Canaanites, the Hittites, the Perizzites, the Jebusites, the Ammonites, the Moabites, the Egyptians, and the Amorites; for they have taken of their daughters for themselves and for their sons, and have mingled the holy seed with the peoples of the lands; and the hand of the princes and rulers has been chief in this unfaithfulness.

When Jehovah thy God shall bring thee into the land whither thou goest to possess it, and shall cast out many nations from before thee, the Hittites, and the Girgashites, and the Amorites, and the Canaanites, and the Perizzites, and the Hivites, and the Jebusites, seven nations greater and mightier than thou, and when Jehovah thy God shall give them up before thee and thou shalt smite them, then shalt thou utterly destroy them: thou shalt make no covenant with them, nor shew mercy unto them. And thou shalt make no marriages with them: thy daughter thou shalt not give unto his son, nor take his daughter for thy son; read more.
for he will turn away thy son from following me, and they will serve other gods, and the anger of Jehovah will be kindled against you, and he will destroy thee quickly.

And it came to pass a long time after that Jehovah had given rest to Israel from all their enemies round about, and Joshua had become old, advanced in age, that Joshua called for all Israel, for their elders, and for their heads, and for their judges, and for their officers, and said unto them, I am become old, advanced in age; and ye have seen all that Jehovah your God hath done to all these nations because of you. For Jehovah your God is he that hath fought for you. read more.
Behold, I have divided unto you by lot for an inheritance, according to your tribes, these nations that remain, from the Jordan, as well as all the nations that I have cut off, as far as the great sea toward the sun-setting. And Jehovah your God, he will expel them from before you, and dispossess them from out of your sight; and ye shall take possession of their land, as Jehovah your God hath said unto you. And be ye very courageous to keep and to do all that is written in the book of the law of Moses, that ye turn not aside therefrom to the right hand or to the left; that ye enter not among these nations, these that remain among you; and ye shall make no mention of the name of their gods, nor cause to swear by them, neither serve them, nor bow yourselves unto them; but ye shall cleave unto Jehovah your God, as ye have done unto this day. For Jehovah hath dispossessed from before you great and strong nations; and as to you, no man hath been able to stand before you unto this day. One man of you chaseth a thousand; for Jehovah your God, he it is that fighteth for you, as he hath said unto you. Take great heed therefore unto your souls, that ye love Jehovah your God. For if ye in any wise go back, and cleave unto the residue of these nations, these that remain among you, and make marriages with them, and come in unto them and they unto you:

And Shechaniah the son of Jehiel, of the sons of Elam, answered and said to Ezra, We have acted unfaithfully toward our God, and have taken foreign wives of the peoples of the land; yet now there is hope for Israel concerning this thing. And now let us make a covenant with our God to put away all the wives, and such as are born of them, according to the counsel of my lord, and of those that tremble at the commandments of our God; and let it be done according to the law.

joined with their brethren, their nobles, and entered into a curse and into an oath, to walk in the law of God, which had been given by Moses the servant of God, and to keep and do all the commandments of Jehovah our Lord, and his ordinances and his statutes; and that we would not give our daughters to the peoples of the land, nor take their daughters for our sons: