128. But if this moves you that He said
“searcheth,” learn that this is also said of God, inasmuch
as He is the searcher of hearts and reins. For Himself
said: “I am He that searcheth the heart and
reins.” Jer. xvii. 10. And of
the Son of God you have also in the Epistle to the Hebrews:
“Who is the Searcher of the mind and thoughts.” Heb. iv. 12. Whence it is clear that no
inferior searches the inward things of his superior, for to know hidden
things is of the divine power alone. The Holy Spirit, then, is a
searcher in like manner as the Father, and the Son is a searcher in
like manner, by the proper signification of which expression this is
implied, that evidently there is nothing which He knows not, Whom
nothing escapes.