Mark 12:30

and you must love the Lord your God with all your heart, with all your soul, with all your mind and with all your strength.'

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 one is the greatest commandment in the law of Moses?" he asked.
1 John 4:21
And this is the [greatest] commandment [See Matt. 2:37-38] we have received from Him: [It requires] that the person who [claims to] love God should also love his brother.