"Listen, Israel: YHWH our deity is the one, the only YHWH. You must love YHWH your Deity with all your heart, with all your soul, with all your strength. Let the words I enjoin on you today stay in your heart. You shall tell them to your children, and keep on telling them, when you are at home, when you are out and about, when you are lying down and when you are standing up; you must fasten them on your hand as a sign and on your forehead as a headband; you must write them on the doorposts of your house and on your portals." (Deuteronomy 6:4-9)
"You will love your neighbour as yourself" (Leviticus 19:9b)
"No one has ever seen the Deity, but as long as we love each other the Deity remains in us and the Divine love comes to its perfection in us." (1 John 4:12)