Mark 12:30
Deuteronomy 6:5
You shall love the Lord your God with all your heart and mind and with all your soul and with all your strength [your entire being].
Treasury of Scripture Knowledge
Summary
And thou shalt love the Lord thy God with all thy heart, and with all thy soul, and with all thy mind, and with all thy strength: this is the first commandment.
General references
Bible References
General references
Matthew 22:36
“Teacher, which is the greatest commandment in the Law?”
1 John 4:21
And this commandment we have from Him, that the one who loves God should also [unselfishly] love his brother and seek the best for him.