And to love Him with all the heart, and with all the understanding, and with all the soul, and with all the strength, and to love his neighbour as himself, is more than all whole burnt offerings and sacrifices. – Mark 12:33

It was clear to (the scribe) that there was but one God, and that man was made on purpose to be one and undivided in His service. He perceived that man should love, honor, and serve that one God with all his heart, with all his understanding, with all his soul, and with all his strength. Do you know that, dear friend? Come now, if you are not a saved man, I will ask you-do you recognize this to be true, that it is your bounden duty to serve your God with all your heart and understanding, and soul, and strength? Do you admit this? If you do, and if you are an honest man, you are not far from the kingdom of God, because honest men earnestly endeavor to pay their debts, and when they find that they cannot, they are distressed. If you are in distress of mind because you cannot meet your obligations to God, then you are not far from the kingdom. I rejoice in your discovery of shortcoming, failure, and inability, for these lie near that hearty penitence which is the sister of saving faith, and the sure herald of joy and peace. When a man feels his own inability to do as he ought, when he trembles before the law which, nevertheless, he honors and admits to be just and right, then he is not far from self-renunciation, and from accepting that matchless righteousness which Jesus Christ has come to bring. A consciousness of the supremacy of the sovereignty of God over us, so that he ought to have every thought, every breath, every pulse, is the work of the Spirit, who thereby convinces us of sin, and it is a sweet sign of dawn in the once darkened soul. Admit that God ought to be heartily loved, and you are not far from loving Him; feel that you are guilty for not loving, and the seeds of love are in your heart. ~ C.H. Spurgeon

https://www.blueletterbible.org/comm/spurgeon_charles/sermons/1517.cfm