When you read the Ten Commandments (Exodus 20), you will see that the first four commandments are talking about a relationship between you and God, and the last six concern your relationships with people. It is obvious that the first three are relational, and, if you look closely, you will see that the fourth is as well.
The third command, “You shall not misuse the name of the Lord, your God,” is relational in that God is telling us not to misuse His name by calling Him “Lord” when we don’t submit to Him as our Master. You are going to confuse the world if you are bowing down to the refrigerator one minute and calling God “Lord” the next. The fourth command, to keep the Sabbath day holy, is relational, too. God is saying, “Look, there are seven days in a week. Set apart one of those days for just you and Me—I want your total heart, soul, mind and strength that day. Can you not give Me just one day out of seven if I am truly the object of your affection?!”