How can it not be necessary, for him who wishes to lay hold of the power of God, to philosophise and to grasp with comprehension intellectual concept… - Clement of Alexandria

δεῖ δὲ σαφῶς εἰδότας ὡς οὐδὲν ἀνθρωπίνως ὁ σωτήρ, ἀλλὰ πάντα θείᾳ σοφίᾳ καὶ μυστικῇ διδάσκει τοὺς ἑαυτοῦ, μὴ σαρκίνως ἀκροᾶσθαι τῶν λεγομένων, ἀλλὰ τὸν ἐν αὐτοῖς κεκρυμμένον νοῦν μετὰ τῆς ἀξίας ζητήσεως καὶ συνέσεως ἐρευνᾶν καὶ καταμανθάνειν.

Cultivate quietness in word, quietness in deed, likewise in speech and gait; and avoid impetuous eagerness, for then the mind will remain steady, and will not be agitated by your eagerness. ... For the mind, seated on high on a quiet throne looking intently towards God, must control the passions, ... so that your quietness may be adorned by good proportion and your bearing may appear something divine.

He alone can remit sins who is appointed our Master by the Father of all; He only is able to discern obedience from disobedience.