I believe "love one another" is the core of Christianity. The word "love" is being repeated tons of times through out the Bible both New and Old Testaments."Love" is so complicated that only God can give us wisdom and discernment to love one another.I believe God will give us discernment how to do it if we love our God, YHWH, and Jesus with all our heart, soul, strength and mind which means to serve Him with all our might.Thank you