This will happen when the perfect comes. The speech, thoughts, and understanding of Paul back when he was writing this book of the New Testament will be like a child's speech, thoughts and understanding. We will know fully as we are fully known. But now, we know in part.
Paul wrote to the Ephesians, that by reading this ye may understand my knowledge in the mystery of Christ. He does not say that by reading the scriptures they will no so much that he will seem like a baby in comparison. The Bible teaches us 'the faith once delivered to the saints', not the full perfection that Paul and the rest of the saints of God will experience at the resurrection of the dead
Philippians 3
11 If by any means I might attain unto the resurrection of the dead.
12 Not as though I had already attained, either were already perfect: but I follow after, if that I may apprehend that for which also I am apprehended of Christ Jesus.
I john 3:2
Beloved, now are we the sons of God, and it doth not yet appear what we shall be: but we know that, when he shall appear, we shall be like him; for we shall see him as he is.
Paul wrote to the Ephesians, that by reading this ye may understand my knowledge in the mystery of Christ. He does not say that by reading the scriptures they will no so much that he will seem like a baby in comparison. The Bible teaches us 'the faith once delivered to the saints', not the full perfection that Paul and the rest of the saints of God will experience at the resurrection of the dead
Philippians 3
11 If by any means I might attain unto the resurrection of the dead.
12 Not as though I had already attained, either were already perfect: but I follow after, if that I may apprehend that for which also I am apprehended of Christ Jesus.
I john 3:2
Beloved, now are we the sons of God, and it doth not yet appear what we shall be: but we know that, when he shall appear, we shall be like him; for we shall see him as he is.
You simply must believe what God has given is what God is giving. Christ was here and departed though we await His return He is not the completion foretold in 1 Cor 13.
For the cause of Christ
Roger