35 So Jesus said to them, “For a little while longer the Light is among you. Walk while you have the Light, so that darkness will not overtake you; he who walks in the darkness does not know where he goes. 36 While you have the Light, believe in the Light, so that you may become sons of Light.36 While you have the Light, believe in the Light, so that you may become sons of Light. These things Jesus spoke, and He went away and hid Himself from them.” John 12:35-40 (NASB) Read verses 37-40 and Isaiah 6:8-10 on the site.
God is Sovereign. In John 12:40 the Apostle quoted Isaiah 6:8-10. I placed both passages in context at the top of this post. Notice John 12:39, “For this reason they could not believe…” This is the NASB rendering. The NA28 Greek text for this part of v39 is, διὰ τοῦτο οὐκ ἠδύναντο πιστεύειν….
Here is my rendering, “Through this they were not able to believe.” The word translated here as “not” is οὐκ (ouk), which is an absolute negative. Therefore what it is defining is absolutely negated and that verb is ἠδύναντο, which is the 3rd person, imperfect tense, indicative mood, middle voice form of δύναμαι (dunamai), which means “to be able, either intrinsically and absolutely, which the ordinary signification; or, for specific reasons.” The third part of this is the word “believe” which is a translation of the verb πιστεύειν the present tense, infinitive mood, active voice form of πιστεύω (pisteuō), “to have faith.” The way this is structured my brethren it is plainly a work of God that these people were not able “to have faith.”