I feel like a lot of stuff I have been reading or hearing has been about love. That makes sense, given love is the core of who God is. God IS love. Of course I am learning a lot about love.
The classic is 1 Corinthians 13. Anything without love is nothing.
Let all that you do be done in love, 1 Corinthians 16:14.
Little children, let us not love in word or talk but in deed and in truth. 1 John 3:18