διαγωνιστέον
From LSJ
εἰ μέντοι νόμον τελεῖτε βασιλικὸν κατὰ τὴν γραφήν, Ἀγαπήσεις τὸν πλησίον σου ὡς σεαυτόν, καλῶς ποιεῖτε → Now if you're accomplishing the King's Law according to scripture — Thou shalt love thy neighbour as thyself — you're doing the right thing (James 2:8)
English (LSJ)
A one must make a great effort, Ph.2.471.