This is the first and great commandment.
This is the great (most important, principal) and first commandment.
This is the great and first commandment.
This is the first and greatest commandment.
This is the greatest and first commandment.
This is the greatest and the first commandment.
Jesus said unto him, You shall love the Lord your God with all your heart, and with all your soul, and with all your mind.
And the second is like unto it, You shall love your neighbor as yourself.
If you know these things, happy are you if you do them.