IV. The degenerate Israelites were not effectually and thoroughly reformed, no, not by their judges, v. 17-19. 1. Even while their judges were with them, and active in the work of reformation, there were those that would not hearken to their judges, but at that very time went a whoring after other gods, so mad were they upon their idols, and so obstinately bent to backslide. They had been espoused to God, but broke the marriage-covenant, and went a whoring after these gods. Idolatry is spiritual adultery, so vile, and base, and perfidious a thing is it, and so hardly are those reclaimed that are addicted to it. 2. Those that in the times of reformation began to amend yet turned quickly out of the way again, and became as bad as ever. The way they turned out of was that which their godly ancestors walked in, and set them out in; but they soon started from under the influence both of their fathers' good example and of their own good education. The wicked children of godly parents do so, and will therefore have a great deal to answer for. However, when the judge was dead, they looked upon the dam which checked the stream of their idolatry as removed, and then it flowed down again with so much the more fury, and the next age seemed to be rather the worse for the attempts that had been made towards reformation, v. 19. They corrupted themselves more than their fathers, strove to outdo them in multiplying strange gods and inventing profane and impious rites of worship, as it were in contradiction to their reformers. They ceased not from, or, as the word is, they would not let fall, any of their own doings, grew not ashamed of those idolatrous services that were most odious nor weary of those that were most barbarous, would not so much as diminish one step of their hard and stubborn way. Thus those that have forsaken the good ways of God, which they have once known and professed, commonly grow most daring and desperate in sin, and have their hearts most hardened.