Deuteronomy 31:29

29 For I know that after my death you are sure to become utterly corrupt and to turn from the way I have commanded you. In days to come, disaster will fall on you because you will do evil in the sight of the LORD and arouse his anger by what your hands have made.”

Read Deuteronomy 31:29 Using Other Translations

For I know that after my death ye will utterly corrupt yourselves, and turn aside from the way which I have commanded you; and evil will befall you in the latter days; because ye will do evil in the sight of the LORD, to provoke him to anger through the work of your hands.
For I know that after my death you will surely act corruptly and turn aside from the way that I have commanded you. And in the days to come evil will befall you, because you will do what is evil in the sight of the LORD, provoking him to anger through the work of your hands."
I know that after my death you will become utterly corrupt and will turn from the way I have commanded you to follow. In the days to come, disaster will come down on you, for you will do what is evil in the LORD ’s sight, making him very angry with your actions.”

What does Deuteronomy 31:29 mean?

John Gill's Exposition of the Bible
Deuteronomy 31:29

For I know that after my death
Which was just at hand, some time after that, not immediately; this he knew by a spirit of prophecy, namely, what follows:

ye will utterly corrupt [yourselves];
their ways, works, and manners, and so themselves; corrupt the worship of God by making idols, and serving them, which is the corruption chiefly intended:

and turn aside from the way which I have commanded you:
from the way of the commandments of God, which Moses had given them in his name, and in which they were directed to walk; but, as here foretold, would wander and swerve from them as they did:

and evil will befall you in the latter days;
not only in the times of the judges, and in the time of the Babylonish captivity, but in their present captivity, as they call it; which shows that the following song has things in it which respect times at a great distance, and even the present ones, and yet to come:

because ye will do evil in the sight of the Lord, to provoke him to
anger through the work of your hands;
their idols, idolatry being the evil chiefly designed, which is of all things the most provoking of the Lord.

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