But whoever keeps His word, truly the love of God is perfected in him. By this we know that we are in Him. – 1 John 2:5

Oh, if the love of the Father to Christ once enters into a man’s soul it will change him; it will sway him with the noblest passion; it will make him a zealot for Christ; it will cast out his selfishness; it will change him into the image of Christ, and fit him to dwell in heaven where love is perfected…this indwelling of the Father’s love in us has the most blessed results. It has an expulsive result. As soon as ever it gets into the heart it says to all love of sin, “Get thee hence; there remains no room for thee here.” When the light enters in, the darkness receives immediate notice of ejectment; the night is gone as soon as the dawn appears. It has also a repulsive power by which it repels the assaults of sin. As though a man did snatch the sun out of the heaven and make a round shield with it, and hold it in the very face of the prince of darkness, and blind him with the light, so doth the love of God the Father repel the enemy. It girds the soul with the armour of light. It repels the devil, the love of the world, the love of sin, and all outward temptations. And then what an impulsive power it has. Get the love of Christ into you, and it is as when an engine receives fire and steam, and so obtains the force which drives it. Then have you strengthening, then have you motive power, then are you urged on to this and that heroic deed which, apart from this sublime love, you never would have thought of. For Christ you can live, for Christ you can suffer, for Christ you can die, when once the Father’s love to him has taken full possession of your spirit. And, oh, how elevating it is. How it lifts a man up above self and sin; how it makes him seek the things that are above! ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/1667.cfm