Some relevent quotes
[link|http://www.css.tayloru.edu/~gbeeley/WWW_BIBLE/04.numbers.033.html|Numbers Thirty-Three]
50 And the LORD spake unto Moses in the plains of Moab by Jordan near Jericho, saying,
51 Speak unto the children of Israel, and say unto them, When ye are passed over Jordan into the land of Canaan;
52 Then ye shall drive out all the inhabitants of the land from before you, and destroy all their pictures, and destroy all their molten images, and quite pluck down all their high places:
53 And ye shall dispossess the inhabitants of the land, and dwell therein: for I have given you the land to possess it.
54 And ye shall divide the land by lot for an inheritance among your families: and to the more ye shall give the more inheritance, and to the fewer ye shall give the less inheritance: every man's inheritance shall be in the place where his lot falleth; according to the tribes of your fathers ye shall inherit.
55 But if ye will not drive out the inhabitants of the land from before you; then it shall come to pass, that those which ye let remain of them shall be pricks in your eyes, and thorns in your sides, and shall vex you in the land wherein ye dwell.
56 Moreover it shall come to pass, that I shall do unto you, as I thought to do unto them.
[link|http://www.css.tayloru.edu/~gbeeley/WWW_BIBLE/06.joshua.023.html|Joshua Twenty-Three]
12 Else if ye do in any wise go back, and cleave unto the remnant of these nations, even these that remain among you, and shall make marriages with them, and go in unto them, and they to you:
13 Know for a certainty that the LORD your God will no more drive out any of these nations from before you; but they shall be snares and traps unto you, and scourges in your sides, and thorns in your eyes, until ye perish from off this good land which the LORD your God hath given you.
[link|http://www.css.tayloru.edu/~gbeeley/WWW_BIBLE/02.exodus.023.html|Exodus Twenty-Three]
30 By little and little I will drive them out from before thee, until thou be increased, and inherit the land.
31 And I will set thy bounds from the Red sea even unto the sea of the Philistines, and from the desert unto the river: for I will deliver the inhabitants of the land into your hand; and thou shalt drive them out before thee.
32 Thou shalt make no covenant with them, nor with their gods.
33 They shall not dwell in thy land, lest they make thee sin against me: for if thou serve their gods, it will surely be a snare unto thee.
[link|http://www.css.tayloru.edu/~gbeeley/WWW_BIBLE/02.exodus.034.html|Exodus Thirty-Four]
12 Take heed to thyself, lest thou make a covenant with the inhabitants of the land whither thou goest, lest it be for a snare in the midst of thee:
13 But ye shall destroy their altars, break their images, and cut down their groves:
14 For thou shalt worship no other god: for the LORD, whose name is Jealous, is a jealous God:
15 Lest thou make a covenant with the inhabitants of the land, and they go a whoring after their gods, and do sacrifice unto their gods, and one call thee, and thou eat of his sacrifice;
16 And thou take of their daughters unto thy sons, and their daughters go a whoring after their gods, and make thy sons go a whoring after their gods.
(All emphasis mine.)
This is the religious basis for the nation of Israel. It allows for no compromise, and demands the eradication of all non-Jews "from the Red sea even unto the sea of the Philistines, and from the desert unto the river."