By using that word, he meant that instead of serving sin, as we did when we remained unredeemed by Jesus, now by the grace of God, we would serve righteousness—we would become slaves to righteousness.
His point was well taken. However, I would now like to introduce another subject concerning our relationship to God. These words I take from what Jesus told his disciples:
“No longer do I call you slaves, or servants (the two terms are actually the same word in Greek), for a slave does not understand what his master is doing. But I have called you friends, because everything I have learned from My Father I have made known to you” (John 15:15).
“A Friend of God”
I am certain that all of us present here would like to be called a friend of God. Very few people in the Bible have had a relationship so intimate with God that they actually were called “the friend of God.”