'Unsearchable' in the Bible

Who does great and unsearchable things,Wonders without number.

“Behold, God is exalted, and we do not know Him;The number of His years is unsearchable.

Great is the Lord, and highly to be praised,And His greatness is unsearchable.

As the heavens for height and the earth for depth,So the heart of kings is unsearchable.

Oh, the depth of the riches both of the wisdom and knowledge of God! How unsearchable are His judgments and unfathomable His ways!