4 After the Lord your God has driven them out before you, do not say to yourself, "The Lord has brought me here to take possession of this land because of my righteousness." No, it is on account of the wickedness of these nations that the Lord is going to drive them out before you.

Matthew Henry's Commentary on Deuteronomy 9:4

Commentary on Deuteronomy 9:1-6

(Read Deuteronomy 9:1-6)

Moses represents the strength of the enemies they were now to encounter. This was to drive them to God, and engage their hope in him. He assures them of victory, by the presence of God with them. He cautions them not to have the least thought of their own righteousness, as if that procured this favour at God's hand. In Christ we have both righteousness and strength; in Him we must glory, not in ourselves, nor in any sufficiency of our own. It is for the wickedness of these nations that God drives them out. All whom God rejects, are rejected for their own wickedness; but none whom he accepts are accepted for their own righteousness. Thus boasting is for ever done away: see Ephesians 2:9,11,12.

12 That is why the Israelites cannot stand against their enemies; they turn their backs and run because they have been made liable to destruction. I will not be with you anymore unless you destroy whatever among you is devoted to destruction.

Matthew Henry's Commentary on Joshua 7:12

Commentary on Joshua 7:10-15

(Read Joshua 7:10-15)

God awakens Joshua to inquiry, by telling him that when this accursed thing was put away, all would be well. Times of danger and trouble should be times of reformation. We should look at home, into our own hearts, into our own houses, and make diligent search to find out if there be not some accursed thing there, which God sees and abhors; some secret lust, some unlawful gain, some undue withholding from God or from others. We cannot prosper, until the accursed thing be destroyed out of our hearts, and put out of our habitations and our families, and forsaken in our lives. When the sin of sinners finds them out, God is to be acknowledged. With a certain and unerring judgment, the righteous God does and will distinguish between the innocent and the guilty; so that though the righteous are of the same tribe, and family, and household with the wicked, yet they never shall be treated as the wicked.