In order to Love one another, we must be faithful to Love God and keep his Word. You then are enabled (there’s no ability before this); to Love your brother, and your sister, and your wife, and your in-laws. Go deep with God, and instead of this being just a catchy cliché, it will become to you a road map in life and you’ll be on your way. There no need of just spinning your wheels in life.
1 John 5:2
2 By this we know that we love the children of God, when we love God, and keep his commandments.