They wanted to worship the Lord, but they wanted to do it their way. Very much so. For example, people don't want to hear about the doctrine and reality of hell, so they drop it from their statements and teaching. They don't like the thought of role distinction between men and women in the church, so an unbiblical doctrine is adopted. People pick and choose the doctrines that are pleasing to them.
Eclectic religion is pleasing to man.
Consider some of the eclectic religious practices in the church today. There is a way that seems right to man, but its end is the way of death. The false worship by the tribe of Dan paved the way for the further idolatry of Jereboam I, who set up golden calf idols in the northern kingdom. The gods of this life bring futility and emptiness. Rid out the idols in your life and live in the fulness and joy of the Lord.