Deuteronomy 9:4

4 Say thou not in thine heart, when thy Lord God hath done them away in thy sight, For my rightwiseness the Lord hath brought me in hither, that I should wield the land; since these nations be done away for their wickednesses. (But when the Lord thy God hath done them away before thee, do not thou say in thy heart, Because of my righteousness, the Lord hath brought me here, so that I could take this land; since these nations shall be done away because of their own wickednesses.)

Deuteronomy 9:4 Meaning and Commentary

Deuteronomy 9:4

Speak not thou in thine heart
Never once think within thyself, or give way to such a vain imagination, and please thyself with it:

after that the Lord thy God hath cast them out from before thee;
to make way for the Israelites, and put them into the possession of their land; which is to be ascribed not to them, but to the Lord:

saying, for my righteousness the Lord hath brought me in to possess
this land;
such a thought as this was not to be secretly cherished in their hearts, and much less expressed with their lips; nothing being more foreign from truth than this, and yet a notion they were prone to entertain. They were always a people, more or less, from first to last, tainted with a conceit of their own righteousness, and goodness, which they laboured to establish, and were ready to attribute all the good things to it they enjoyed, and nothing is more natural to men, than to fancy they shall be brought to the heavenly Canaan by and for their own righteousness; which is contrary to the perfections of God, his purity, holiness, and justice, which can never admit of an imperfect righteousness in the room of a perfect one; to justify anyone thereby, is contrary to the Gospel scheme of salvation; which is not by works of righteousness men have done, but by the grace and mercy of God through Christ; it would make useless, null, and void, the righteousness of Christ, which only can justify men in the sight of God, give a title to heaven and happiness, and an abundant entrance into it; and would occasion boasting, not only in the present state, but even in heaven itself; whereas the scheme of salvation is so framed and fixed, that there may be no room for boasting, here or hereafter, see ( Romans 3:27 Romans 3:28 ) ( Ephesians 2:8 Ephesians 2:9 ) ( Titus 3:5 Titus 3:7 ) ,

but for the wickedness of these nations the Lord doth drive them out
from before thee;
namely, their idolatry, incest, and other notorious crimes; see ( Leviticus 18:3-28 ) , which sufficiently justifies God in all his dealings with these nations.

Deuteronomy 9:4 In-Context

2 a great people, and high; the sons of Anakim, which thyself hast seen, and heard, which no man may against-stand in the contrary part. (a great and tall people; the sons of the Anakim, that is, the giants, whom thou hast seen, and heard, and whom no one can stand against.)

3 Therefore thou shalt know today that thy Lord God himself shall pass before thee; he is a fire devouring and wasting, that shall all-break them, and he shall do them away, and destroy them before thy face swiftly, as he spake to thee. (And so know thou today that the Lord thy God himself shall go ahead of thee; he is a devouring and wasting fire, and he shall all-break them before thy face, and then ye shall do them away, and swiftly destroy them, as he promised thee.)

4 Say thou not in thine heart, when thy Lord God hath done them away in thy sight, For my rightwiseness the Lord hath brought me in hither, that I should wield the land; since these nations be done away for their wickednesses. (But when the Lord thy God hath done them away before thee, do not thou say in thy heart, Because of my righteousness, the Lord hath brought me here, so that I could take this land; since these nations shall be done away because of their own wickednesses.)

5 For not for thy rightwiseness, and for the equity of thine heart thou shalt enter, that thou wield their land; but for they did wickedly, they were done away (by thy Lord God), when thou enteredest, and that the Lord should [ful]fill his word which he promised under an oath to thy fathers, to Abraham, Isaac, and Jacob. (For it is not because of thy own righteousness, or the integrity of thy own heart, that thou shalt enter to take their land; but they shall be done away before thee by the Lord thy God, because they did wickedly, and so that the Lord would fulfill his word which he promised under an oath to thy fathers, to Abraham, Isaac, and Jacob.)

6 Therefore know thou that not for thy rightwisenesses thy Lord God hath given to thee this best land into possession, since thou art a people of most hard noll. (And so know thou that the Lord thy God hath not given thee this best land for a possession because of thy own righteousness, since thou art a most stubborn, or a stiff-necked, people.)