Jacob was spiritually apathetic. He let things slide, rather than taking charge. The idolatry spread throughout the household. Unfortunately, the falsehood of idols spreads much more quickly than the truth of God, and so, the godliness of Jacob was no match for the lure of idolatry. The idolatry in the family was certainly at the heart of the ungodly events in Genesis 34.
All sin has dire consequences.
We parents must be careful that we do not tolerate the sin in the lives of our beloved family members. God rewarded Jacob's obedience in setting out for Bethel by supernaturally putting fear in the hearts of the people of the surrounding areas so that the inhabitants would not pursue Jacob's household. At the top of the ladder was the Lord, who gave Jacob the covenant promises. God brought Jacob back to Bethel to remind him of the closeness he felt to God at that time. It is good to remember a past time of closeness to God when making an attempt to return to God.