Don't mind someone else's business is good advice only if that someone is not God. To follow God, we must be totally involved with him; yes, even to the point of "butting in" or badgering him. We want to know what the Lord's will and plan for us are. We should find out as much as possible by communicating constantly with him. He must have our full attentiveness. Yes, we must be about God's business at all times.