Commentaries:
Robertson's Word Pictures (NT)
That doeth the truth (o poiwn thn alhqeian). See I John 1:6 for this striking phrase.
Comes to the light (erxetai prov to fwv). Is drawn by the light, spiritual heliotropes, not driven from it.
That may be made manifest (ina fanerwqh). Final ina with first aorist passive subjunctive of fanerow.
They have been wrought in God (en qew estin eirgasmena). Periphrastic perfect passive indicative of ergazomai. He does not claim that they are perfect, only that they have been wrought in the sphere of and in the power of God. Hence he wants the light turned on.
Other Robertson's Word Pictures (NT) entries containing John 3:21:
John 3:15
John 3:16
John 3:31
John 8:34
1 John 1:6
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