This is how we know what real love is: Jesus gave his life for us. So we should give our lives for our brothers and sisters.17 Suppose someone has enough to live and sees a brother or sister in need, but does not help. Then God’s love is not living in that person.18 My children, we should love people not only with words and talk, but by our actions and true caring. 19 This is the way we know that we belong to the way of truth. NCV)
A few thoughts on these verses…
Real love defined: self-sacrifice.
God’s love in action in us: giving to those in need.
Words express love; actions express it more effectively.
We know we are right with God when we make His love obvious.