“But the Helper, the Holy Spirit, whom the Father will send in My name, He will teach you all things, and bring to your remembrance all things that I said to you.” – John 14:26
O beloved, it is not knowledge that you and I pick up as a matter of book learning that will ever bring out our love to the Father: it is knowledge given us by Christ through His Spirit. It is not knowledge communicated by the preacher alone which will bless you; for however much he may be taught of God Himself, he cannot preach to the heart unless the blessed Spirit of God comes and takes of the things that are spoken, and reveals them and makes them manifest to each individual heart, so that in consequence it knows the Lord. Jesus said, “O righteous Father, the world hath not known Thee,” and you and I would have been in the same condition, strangers to God, without God and without hope in the world, if the Spirit of God had not taken of divine things and applied them to our souls so that we are made to know them. Every living word of knowledge is the work of the living God. If you only know what you have found out for yourself, or picked up by your own industry apart from Jesus, you know nothing aright: it must be by the direct and distinct teaching of God the Holy Ghost that you must learn to profit. Jesus Christ alone can reveal the Father. He Himself said, “No man cometh unto the Father but by Me.” He that knows not Christ knows not the Father; but when Jesus Christ reveals Him, ah! then we do know Him after a special, personal, peculiar, inward knowledge. This knowledge brings with it a life and a love with which the soul is not puffed up, but built up. By such knowledge we grow up into Him in all things who is our Head, being taught of the Son of God.~ C.H. Spurgeon
https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/1667.cfm