God is love. It is because of His love that we exist and have salvation. Love is how God defeats the enemy. Love is courageous and casts out fear. Love protects and respects. Love is what people will remember and is the greatest supernatural gift. 1 Corinthians 13:1-13, 1 John 4:7-21, John 3:16, 

Jesus reminds us to stay in first love because love is how our faith begins and how we continue in the faith.  Romans 13:10, John 15:4-9, Colossians 2:6, Galatians 5:22-23, Jeremiah 31:3, 1 Peter 4:8, Revelation 2:3-5