Mark 12:30

and thou shalt love the Lord thy God out of all thy heart, and out of thy soul, and out of all thine understanding, and out of all thy strength -- this is the first command;

Deuteronomy 6:5

and thou hast loved Jehovah thy God with all thy heart, and with all thy soul, and with all thy might,

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 great command in the Law?'
1 John 4:21
and this is the command we have from Him, that he who is loving God, may also love his brother.