See vs 23

Jesus answered, “If anyone [really] loves Me, he will keep My word (teaching); and My Father will love him, and We will come to him and make Our dwelling place with him.

In simpler terms

If you love God, obey Him completely

Welcome to our generation that claim they love God but don't do what He says, if you try to bring it to their attention, they call you judgemental and excuse themselves with God's undying love for them.

Anyway, what more can I say..

Obedience is proof of love, nothing more, nothing less

God help us