“If Thou, LORD, shouldest mark iniquities, O Lord, who shall stand? But there is forgiveness with Thee, that Thou mayest be feared. I wait for the LORD, my soul doth wait, and in His word do I hope.” Psalm 130:3-5 (KJV)
Many a human Judge has hammered his/her gavel, and declared “Guilty” as a verdict against a man or woman who has been often proven guilty of some crime they have done. That same Judge has hammered the gavel, and declared “Not guilty”, because the case was not proven against an defendant.
The Psalmist of the above verses knows that if the LORD was to “Mark iniquities”, that is, to observe, give heed to; to charge us, then no one would be able to stand before Him.
Let us make something very clear. God is just, holy, righteous, and He judges with His eyes wide open, not blindly. He knows that we are a sinful, iniquitous people; yet with Him is much forgiveness.
You may be an individual who has never pled guilty, or even realized that you were guilty of anything. You are. You have sinned against holy God. You have lived your life your way, not His way. Yet, God will not “Mark [your] iniquities” when you come to Him for forgiveness.
He has made it possible that all who come to Him, He will in no wise cast out (John 6:37). When you are His, a saint by His declaration, and you sin, you can still go to Him, and He forgives you (1 John 1:9).
The waiting the Psalmist mentions is not for forgiveness, but he knows that he has received forgiveness, and goes on in the work, and service of the LORD. Thus it is ours to do so as well.
When you come to God through His Son Jesus Christ; the gavel of the Great Judge goes down, and the Judge declares “Not guilty”.