Exegesis:

mē phobou ‘do not be afraid,’ cf. on 1.13.

apo tou nun ‘from now on,’ i.e., as the next verse shows, beginning immediately.

anthrōpous esē zōgrōn ‘you will be catching men.’ The place of anthrōpous at the beginning of the clause suggests emphasis and contrast with the fishes which he had been catching hitherto in his life. The periphrastic construction esē zōgrōn instead of the future indicative stresses the durative aspect: catching men will be his occupation. But v. 11 shows that this is not to be understood in a general sense. It is corollary to following Jesus.

zōgreō ‘to capture alive.’

Translation:

You will be catching men, a metaphor. In some cases the metaphor can be rendered rather literally, cf. ‘seeking for men’ (Kekchi, where ‘to seek fish’ is the idiomatical rendering of ‘to catch fish’). In several other languages, however, more radical adjustments are necessary, such as making explicit the underlying simile, ‘you will catch men, so to say,’ ‘you will not (or, no longer) catch fish, but men,’ cf. also ‘you will catch men as if you were catching fish’ (Barrow Eskimo); or a shift to a non-metaphorical rendering, sacrificing the play-on-words, e.g. ‘you will be a bringer of men’ (Northern Grebo), ‘you will be winning men,’ ‘you will make others come to me.’ In some cases the durative aspect of the construction is best expressed by an agent noun, e.g. ‘you will act-as a catcher of men,’ or an occupational term, e.g. ‘you will be one-whose-trade-is catching men’ (East and Toraja-Sa’dan, Balinese). Some of the above mentioned adjustments may cause the wording of Lk. 5.10 and Mk. 1.17 to converge or even to coincide; this will have to be accepted, if idiom and/or intelligibility require the adjustments in question. — Men. Where the language distinguishes between ‘men,’ i.e. individuals, and ‘men,’ i.e. human as contrasted with other living beings (as e.g. in Balinese) the latter is to be used here, of course.

Quoted with permission from Reiling, J. and Swellengrebel, J.L. A Handbook on the Gospel of Luke. (UBS Handbook Series). New York: UBS, 1971. For this and other handbooks for translators see here . Make sure to also consult the Handbook on the Gospel of Mark for parallel or similar verses.