Psalm 38:15 (NASB)
(15) For I hope in You, O LORD; You will answer, O Lord my God.
For I am patient in You, O Lord; You will answer, O Lord my God.
For I tarry in You, O Lord. Because of Who you are, I have the knowledge and experience that you will answer my prayer.
The psalmist is saying that God “will” answer. He has answered before, and He will answer again. He knows how the Lord works. Based upon his past experience with God, the Lord will come through for him.
To wait with expectation. I know that you will respond like you have in the past. I am tarrying before you because you are the supreme authority over all humanity. Because you are high and lifted up, and you view all things that are happening, you will answer me from your throne. You spoke to him in Jeremiah 33:3 saying for me to call upon you. Your promise says “…I will answer thee, and show thee great and mighty things which thou knowest not.
God spoke through Moses in Deuteronomy 29:29 which says: the secret things belong to God. Yet God will reveal these things to some so that we might learn of Him and know the God we serve. There are some things we may never know unless the God of our salvation reveals them. For that reason, we must learn to be silent where the Bible is silent. Where the Bible gives an answer, then we can say what the Bible says.