God has not hidden, nor spoken His word in secret. We are to hear His command, speak His word, keep His commandments, and His judgements and do them. The knowledge not hidden is the Word, is the gospel, is the commandment, is the law of God, is Life.
“For this commandment which I command thee this day, it is not hidden from thee, neither is it far off. It is not in heaven, that thou shouldest say, Who shall go up for us to heaven, and bring it unto us, that we may hear it, and do it? Neither is it beyond the sea, that thou shouldest say, Who shall go over the sea for us, and bring it unto us, that we may hear it, and do it? But the word is very nigh unto thee, in thy mouth, and in thy heart, that thou mayest do it.
See, I have set before thee this day life and good, and death and evil; in that I command thee this day to love the LORD thy God, to walk in his ways, and to keep his commandments and his statutes and his judgments, that thou mayest live and multiply: and the LORD thy God shall bless thee in the land whither thou goest to possess it.
But if thine heart turn away, so that thou wilt not hear, but shalt be drawn away, and worship other gods, and serve them; I denounce unto you this day, that ye shall surely perish, and that ye shall not prolong your days upon the land, whither thou passest over Jordan to go to possess it. I call heaven and earth to record this day against you, that I have set before you life and death, blessing and cursing: therefore choose life, that both thou and thy seed may live: that thou mayest love the LORD thy God, and that thou mayest obey his voice, and that thou mayest cleave unto him: for he is thy life, and the length of thy days: that thou mayest dwell in the land which the LORD sware unto thy fathers, to Abraham, to Isaac, and to Jacob, to give them.”
Deuteronomy 30:11-20 KJV
“I have not spoken in secret, in a dark place of the earth: I said not unto the seed of Jacob, Seek ye me in vain: I the LORD speak righteousness, I declare things that are right.”
Isaiah 45:19 KJV
“I have declared the former things from the beginning; and they went forth out of my mouth, and I shewed them; I did them suddenly, and they came to pass. Because I knew that thou art obstinate, and thy neck is an iron sinew, and thy brow brass; I have even from the beginning declared it to thee; before it came to pass I shewed it thee: lest thou shouldest say, Mine idol hath done them, and my graven image, and my molten image, hath commanded them. Thou hast heard, see all this; and will not ye declare it? I have shewed thee new things from this time, even hidden things, and thou didst not know them.”
Isaiah 48:3-6 KJV
“Jesus answered him, I spake openly to the world; I ever taught in the synagogue, and in the temple, whither the Jews always resort; and in secret have I said nothing. Why askest thou me? ask them which heard me, what I have said unto them: behold, they know what I said.”
John 18:20-21 KJV
The conclusion is that nothing is hidden from God’s sheep: They who love God obey God. They receive God’s blessings and not curses. They hear His voice, they speak and do the word written in their heart: They follow Him: They believe and call on His name: They do (believe, obey) what He has said. Therefore, they call Him Lord. These shall live because they chose by faith to live: to have Life and good. The Lord God is our life. Do we believe? Do we know this?
“Jesus said unto her, I am the resurrection, and the life: he that believeth in me, though he were dead, yet shall he live: and whosoever liveth and believeth in me shall never die. Believest thou this?”
John 11:25-26 KJV