Instructions to slaves and masters orient all Christians toward commitment and service to the Lord Jesus.
Although it is impossible to say what is the best thing about being a Christian, the theme of Galatians 4:1-7 is an excellent candidate...
To be ready for Jesus’ coming, we need to be doing what he has already told us to do.
God has always been with his people, in various ways and temporarily in Old Testament times and later and permanently in human flesh.