Son, a condition. Servant, a calling.
I have had some believers and even American pastors telling me that we are not servants but children or friends, I have also heard that servant is a level before becoming a friend of God. But what they believe and teach is a knowledge of someone who has never been a servant. Of someone who did not enter the calling of serving God. To serve God is a calling. To become able of being a channel of God we must have completely died. We become a vessel. A vessel is useless unless it carries something useful and carries this something from one place to another. But if the vessel keeps aguing and do not want to carry anything, it's because it is not a vessel yet, but clay. A vessel has been sanctified. A servant is a vessel. He died to himself and now lives only for God. He lives to serve God. Of course that servants are children of God. Children of God is a condition. It is the condition which everyone who believes in God enters. Now, to be a servant, the person will have to go t...