“I have chosen the way of faithfulness; I set your rules before me”
Those who truly know the ways of the Lord, desire to know Him more, and love Him better. This knowledge and love must be connected to His word though. Knowledge and love outside of His word will not result in an accurate faithfulness. In other words, we’ll be faithfully thinking, saying, and doing things that aren’t aligned with Christian truth.
Setting God’s rules before us simply means that we put them in the front of our minds as a guide of our conduct. We make them the aim of our life. This again takes work to understand His word, and humility as we ask for help from other, more mature saints. Much learning can take place by observing and listening to other believers who are wise.