Earthly love is merely a copy of the Heavenly love, which is infinitely better. Our biological brothers, sisters and our mother and father are our family, born to us on Earth and we are connected by blood.  Jesus said, “My mother and brothers are those who hear God’s word and put it into practice.” Those who hear God’s word and put it into practice are those who love the Lord with all their hearts, minds and souls. They share the same spirit as Jesus. You could say that spiritually they are of the same blood.

For scriptural references: https://namibiancornerstone.com/i-am-a-mother/