It does make a difference what man believes and how man worships God
The earliest clash between man's idea and God's word in choosing a form of worship is recorded in Genesis 4:2-8. Later, Jude referred to "the way of Cain" (vs.11) and the apostle John spoke of Cain's wickedness who slew his brother "because his own works were evil, and his brother's righteous" (I John 3:12). God, in observing Cain's anger and unhappy countenance after he offered the faithless sacrifice, said, "If thou doest well, shalt thou not be accepted? and if thou not do well, sin lieth at the door" (Genesis 4:7). Cain sinned by transgressing God's law (1 John 3:4), by substituting his own way of worship for God's way. Today many follow in the way of Cain have not learned that God's ways and thoughts are not the same as man's (Isaiah 55:8-9), and that to worship by a "form" that is pleasing to man will be followed by disastrous consequences. Those who are determined to worship God according to His Holy Word will be honored and rewarded like Abel of whom it is said, "By faith Abel offered unto God a more excellent sacrifice than Cain..." (Hebrews 11:4). His faith came by hearing God's word (Romans 10:17).
Through the centuries we see mankind standing with the two ways before him or her. God's way on the one hand, perhaps appearing too narrow and difficult with only a few following. On the other hand, there is the popular way, the broad way, the way that seems right to many, but it is the way of death (Jeremiah 10:23, Proverbs 14:12). God's spokesmen are ever calling for people to "stand in the ways, and see, and ask for the old paths, where is the good way, and walk therein and ye shall find rest for your souls"(Jeremiah 6:16). Where are you?