1 JOHN 3.5-6

and you have known that He appeared that He may take away our sins, and sin is not in Him; everyone who is remaining in Him does not sin; everyone who is sinning, has not seen Him, nor known Him.

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ROMANS 8.26-27

And in like manner also, the Spirit helps our weaknesses; for what we may pray for, as it is necessary, we have not known, but [this] One—the Spirit—makes intercession for us with unutterable groanings, and He who is searching the hearts has known what [is] the mind of the Spirit, because according to God He intercedes for holy ones.

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ROMANS 11.33-36

O depth of riches, and wisdom and knowledge of God! How unsearchable His judgments, and untraceable His ways! For who knew the mind of the LORD? Or who became His counselor? Or who first gave to Him, and it will be given back to him again? Because of Him, and through Him, and to Him [are] all things; to Him [is] the glory—for all ages. Amen.

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GALATIANS 3.3

Are you so thoughtless? Having begun in the Spirit, do you now end in the flesh?

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2 TIMOTHY 2.5

and if anyone also may strive, he is not crowned, except he may strive lawfully;