What is the most important commandment. Not a trivial question. At the time when Jesus was asked this, scholars had identified over 600 specific commandments that the Jews were expected to obey.
Jesus’ response in Matthew ch.22 v.37+ was simple and to the point. Love God with all your heart, soul, mind and strength – and your neighbour as yourself.
By putting the Father first, having a wholehearted, sincere love for Him, eveything else fits into perspective. Without that genuine afection and desire to please, we not only rob ourselves of true pleasure, but also make obedience an empy, unsatisfying experience.