Jesus spoke about the Weightier Matters of the Law.
When He was asked what the most important commandment is, the Mitzvah Gadol, He answered “Thou shalt love the LORD your God with all your heart and mind and soul and strength; and the second is like unto it: thou shalt love thy neighbour as thyself.”
In a sense, we love God *by* loving our neighbour.
How do we love our neighbour as ourself?
For more on how to love God, see our page on Consecration