… (and we beheld His glory, the glory as of the only begotten of the Father) full of grace and truth. – John 1:14

Observe the two glorious qualities, joined inseparably-grace and truth-and observe that they are spoken of in the concrete. The apostle says that the only begotten is “full of grace and truth.” He did not come to tell us about grace, but actually to bring us grace. He is not full of the news of grace and truth, but of grace and truth themselves. Others had been messengers of gracious tidings, but He came to bring grace. Others teach us truth, but Jesus is the truth. He is that grace and truth whereof others spoke. Jesus is not merely a teacher, an exhorter, a worker of grace and truth; but these heavenly things are in Him: He is full of them. I want you to note this. It raises such a difference between Christ and others: you go to others to hear of grace and truth, but you must go to Christ to see them…There is truth in others where God has wrought it, by His Spirit; but it is not in them as it is in Christ. In Him dwell the depth, the substance, the essence of the fact. Grace and truth come to us by Him, and yet they evermore abide in Him. I say again, our Lord did not merely come to teach grace and truth, or to impress them upon us; but He came to exhibit in His own person, life, and work, all the grace and truth which we need. He has brought us grace in rivers and truth in streams: of these He has an infinite fullness; of that fullness all His saints receive.

The grace is truthful grace, grace not in fiction nor in fancy, grace not to be hoped for and to be dreamed of but grace, every atom of which is fact; redemption which does redeem, pardon which does blot out sin, renewal which actually regenerates, salvation which completely saves. We have not here blessings which charm the ear and cheat the soul; but real, substantial favors from God that cannot lie. Then blend these things the other way. “Grace and truth”: the Lord has come to bring us truth, but it is not the kind of truth which censures, condemns, and punishes; it is gracious truth steeped in love, truth saturated with mercy. The truth which Jesus brings to His people comes not from the judgment-seat, but from the mercy-seat; it hath a gracious drift and aim about it, and ever tends unto salvation. His light is the life of men. ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/1862.cfm