If we are in Christ, then we are beloved children of God and we should imitate Him. We do this by walking in love, light, and wisdom.
We have an innate desire to want to be loved. The Apostle John reminds us in this passage that we have been loved by God and God placed us in His family to be loved. We are doubly loved. We are loved by God and loved by our brothers and sisters in Christ. God has placed His children in a loving family, a family that loves because God loves them. I don’t know about you but that is something I want to be a part of.
We were darkness but now we are light in the Lord (5:8). The text does not say we were in darkness but rather we were darkness. Our lives were characterized by sin and ignorance of God’s truth. But that is not who we are now. Now we are light. We are holiness and we have been given knowledge of God’s truth.
First, it is important to pause and notice that Paul wants us to fix our gaze on “him”, which in the context means the Father. What Paul wrote in 3:14-19 and what he writes in 20-21 is all about God. When we get to the next lines of the verse, it is not about what God might do through us but about God’s work.