Joshua 23:12

12 `But -- if ye at all turn back and have cleaved to the remnant of these nations, these who are left with you, and intermarried with them, and gone in to them, and they to you,

Joshua 23:12 Meaning and Commentary

Joshua 23:12

Else if ye do in any wise go back
From the Lord and his worship, from his word and ordinances:

and cleave unto the remnant of these nations, [even] those that remain
among you;
in cities not taken, or in several which the Philistines were in possession of, or lived among them as tributaries to them, if they should take to them, and be free and familiar with them, which may lead on to nearer connections in civil and religious matters:

and shall make marriages with them;
marry their daughters to the sons of Canaanites, or admit the daughters of Canaanites to be married to their sons:

and go in unto them, and they to you;
which is expressive of the consummation of marriage, and of the performance of the conjugal duty,

Joshua 23:12 In-Context

10 one man of you doth pursue a thousand, for Jehovah your God [is] He who is fighting for you, as He hath spoken to you;
11 and ye have been very watchful for yourselves to love Jehovah your God.
12 `But -- if ye at all turn back and have cleaved to the remnant of these nations, these who are left with you, and intermarried with them, and gone in to them, and they to you,
13 know certainly that Jehovah your God is not continuing to dispossess these nations from before you, and they have been to you for a gin, and for a snare, and for a scourge, in your sides, and for thorns in your eyes, till ye perish from off this good ground which Jehovah your God hath given to you.
14 `And lo, I am going, to-day, in the way of all the earth, and ye have known -- with all your heart, and with all your soul -- that there hath not fallen one thing of all the good things which Jehovah your God hath spoken concerning you; the whole have come to you; there hath not failed of it one thing
Young's Literal Translation is in the public domain.