De Moor IV:36: God's Knowledge of the Hidden Things of the Heart
6. The hidden Thoughts of the Heart, 1 Kings 8:39; Acts 1:24; John 2:25; Revelation 2:23, in which passages Universal Knowledge, Certain and Immediate, of the Hidden Things of the Heart with sufficient clarity is also claimed for God, and God alone. To whom the same is not able to be denied, unless His Knowledge is thought to be altogether imperfect, and is deprived of an eminent part, not unworthy of Him. God is not able to be ignorant of things that, having been foreseen with the rest, are under His Government, Proverbs 21:1; and concerning which He would not otherwise be able hereafter to judge justly, which nevertheless Paul proclaims He is going to do, Romans 2:16. CLEMENT OF ROME, in his First Epistle to the Corinthians, chapter XXI, relates of God: Ἴδωμεν πῶς ἐγγύς ἐστιν, καὶ ὅτι οὐδὲν λέληθεν αὐτὸν τῶν ἐννοιῶν ἡμῶν, οὐδὲ τῶν διαλογισμῶν ὧν ποιούμεθα. —Ἐρευνητὴς γάρ ἐστιν ἐννοιῶν καὶ ἐνθυμήσεων, Let us consider how near He is, and that none of the thoughts, nor the reasonings in which we engage, are hid from Him:… For He is a searcher of thoughts and desires. And in his Second Epistle, chapter IX, Προγνώστης γάρ ἐστιν τῶν πάντων, καὶ εἰδὼς ἡμῶν τὰ ἐν καρδίᾳ, for He discerneth all things beforehand and knoweth what is in our heart.