Right in the middle of instruction about marriage and singleness, Paul changes subjects to the make the same point: live faithfully where God has put you. Eight times in this passage he uses a form of word called, and in two senses: 1) God’s call on a person to trust in Him and follow Jesus; 2) the work God calls us to do on this earth. Rather than set our spiritual life against our vocations or vice versa, the Bible teaches us to serve the Lord everywhere. We distinguish our callings but should not separate them, which means we are able to love God and people during the 90,000+ hours we will work in a lifetime.