For when we were yet without strength, in due time Christ died for the ungodly. – Romans 5:6

When God gave His Son, He gave us a sure pledge that He meant to finish His work of love. They say of a man that does not finish his work, “This man began to build, and was not able to finish”; but that shall never be said of the Lord Jehovah. The Lord God has laid out His whole Deity to save His people, and given His whole self in the person of the Well-beloved for our redemption; and can you believe that He will fail in it? Surely, the idea is blasphemous. Some of us have known too much love already to believe that it will ever cease to flow towards us. We have been so favoured that we dare not fear that His favour toward us will cease. So heavenly, so divine is the sense of the love of God, when it is revealed to the soul, that we cannot believe that it has been given to mock us. We have been carried away with such torrents of love, that we will never believe that they can be dried up. The Lord has communed with us so closely, that the secret of the Lord is with us, and He will for ever recognize that mystic token by which our union has been sealed. Like Paul, each one of us may say, “I know whom I have believed, and am persuaded that He is able to keep that which I have committed unto Him against that day.” The cost to which our Lord has gone assures us that He will complete His designs of grace. ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/2108.cfm