It is time to move on from the basics, says the Apostle. It is time to sink your teeth into some theological meat and understand He is working in those baptized into Christ.
Obviously, the choice is very black and white: good or evil; life or death; blessings or curses...Unfortunately, the actions of the people will speak louder than their words.
There are good, God-pleasing reasons to attend a Divine Service, but worship attendance can also be an action by which we try to earn or deserve the favor and love of God. This is an ongoing struggle in every worshiping community.
This passage, above all others, speaks most fully about Jesus as the elder brother, the firstborn, of a large family; the family of God the Father, Creator of humankind.