Joshua said, "Put away the foreign gods that are among you, and incline your heart to YHVH, the God of Israel."
Joshua 24:23

Even after all that God had done for Israel in the Exodus and conquest of Canaan, some began to engage in idolatry again before the conquest was even complete.

Even after all that Yeshua had done for mankind at Calvary, the gentile congregations began to fall back into idolatry before the last Apostle had even died.