Colossians 1:29

29UntoεἰςthisὃalsoκαὶI toilκοπιῶstrivingἀγωνιζόμενοςaccording toκατὰtheτὴνenergyἐνέργειανof Himαὐτοῦτὴνworkingἐνεργουμένηνinἐνmeἐμοὶinἐνpowerδυνάμει.

Unto this also I toil, striving according to His energy, which [is] working in me in power.