For this is the love of God, that we keep His commandments: and His commandments are not grievous. – 1 John 5:3

Love is the spring of true obedience. “This is the love of God, that we keep His commandments.” Now a man who is not obedient to God’s commandments is evidently not a true believer; for, although good works do not save us, yet, being saved, believers are sure to produce good works. Though the fruit be not the root of the tree, yet a well rooted tree will, in its season, bring forth its fruits. So, though the keeping of the commandments does not make me a child of God, yet being a child of God, I shall be obedient to my heavenly Father. But this I cannot be unless I love God. A mere external obedience, a decent formal recognition of the laws of God, is not obedience in God’s sight. He abhors the sacrifice where the heart is not found. I must obey because I love, or else I have not in spirit and in truth obeyed at all. See then, that to produce the indispensable fruits of saving faith, there must be love to God; for without it, they would be unreal and indeed impossible. Love to God is as natural to the renewed heart as love to its mother is to a babe. Who needs to reason a child into love? As certainly as you have the life and nature of God in you, you will seek after the Lord. As the spark, because it has in it the nature of fire, ascends aloft to seek the sun, so will your new-born spirit seek her God, from whom she has derived her life. Search yourselves, then, and see whether you love God or no. Put your hands on your hearts, and as in the sight of Him, whose eyes are as a flame of fire, answer to Him; make Him your confessor at this hour; answer this one question: “Lovest thou Me?” I trust very many of you will be able to say-

“Yes, we love Thee and adore;
Oh, for grace to love Thee more.”

~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/1008.cfm