During the time of the OT, men knew God as the creator and knew His power, but only after Christ came could men know the heart of God through knowing the humanity of Jesus Christ.
Joh 14:6 Jesus saith unto him, I am the way, the truth, and the life: no man cometh unto the Father, but by me.
Joh 14:7 If ye had known me, ye should have known my Father also: and from henceforth ye know him, and have seen him.
Joh 14:8 Philip saith unto him, Lord, shew us the Father, and it sufficeth us.
Joh 14:9 Jesus saith unto him, Have I been so long time with you, and yet hast thou not known me, Philip? he that hath seen me hath seen the Father; and how sayest thou then, Shew us the Father?
Joh 14:10 Believest thou not that I am in the Father, and the Father in me? the words that I speak unto you I speak not of myself: but the Father that dwelleth in me, he doeth the works.
Joh 14:11 Believe me that I am in the Father, and the Father in me: or else believe me for the very works' sake.
Joh 14:12 Verily, verily, I say unto you, He that believeth on me, the works that I do shall he do also; and greater works than these shall he do; because I go unto my Father.
LA
Joh 14:6 Jesus saith unto him, I am the way, the truth, and the life: no man cometh unto the Father, but by me.
Joh 14:7 If ye had known me, ye should have known my Father also: and from henceforth ye know him, and have seen him.
Joh 14:8 Philip saith unto him, Lord, shew us the Father, and it sufficeth us.
Joh 14:9 Jesus saith unto him, Have I been so long time with you, and yet hast thou not known me, Philip? he that hath seen me hath seen the Father; and how sayest thou then, Shew us the Father?
Joh 14:10 Believest thou not that I am in the Father, and the Father in me? the words that I speak unto you I speak not of myself: but the Father that dwelleth in me, he doeth the works.
Joh 14:11 Believe me that I am in the Father, and the Father in me: or else believe me for the very works' sake.
Joh 14:12 Verily, verily, I say unto you, He that believeth on me, the works that I do shall he do also; and greater works than these shall he do; because I go unto my Father.
LA