Jesus Christ teaches about the Father Clearly

It is not through pictures that that the Son of God revealed his Father, but through the Word of God.

This is Eternal Life, that they may know You, the only true God, and Jesus Christ whom You have sent (John 17:3).

No one has ever seen God. It is God the only Son, who is close to the Father's heart, who has made Him known (John 1:18).

All things have been handed over to me by my Father; and no one knows who the Son is except the Father, or who the Father is except the Son and anyone to whom the Son chooses to reveal Him (Luke 10:22 ).

It is not through pictures that that the Son of God revealed his Father, but through the Word of God. The true ‘picture’ of God the Father is what the Holy Spirit reveals and illumines in the heart of a person in whom the Holy Sprit dwells, when he hears or reads the Word of God.

To understand the Word of God, we need to receive Wisdom (Mt. 13:9, Dan. 12:8-10). Since the Word of God has been written under the inspiration of the Holy Spirit, the same Holy Spirit must read It for us to know the real meaning of the Word (what God intends through this Word of God) (Is. 34:16). We reach the fullness of Truth only when we receive the Spirit of Truth (Jn. 16:13-14). The Truth is the Word of God (Jn. 17:17). Only when the Children of God are led to the fullness of the Word of God, they will know God fully. This will take place only in the end of Ages.

I still have many things to say to you, but you cannot bear them now. When the Spirit of Truth comes, he will guide you into all the Truth; for he will not speak on his own, but will speak whatever he hears, and he will declare to you the things that are to come (John 16:12 -13)

God gives us the Spirit of Truth when the Son of God is glorified on this earth. The Son of God was not glorified in his First Coming, rather he glorified God the Father. The Son will be glorified on this earth only in his Second Coming.