OET interlinear 2 TH 2:9

uW Translation Notes:

Note 1 topic: figures-of-speech / possession

οὗ ἐστιν ἡ παρουσία, κατ’ ἐνέργειαν τοῦ Σατανᾶ

˱of˲_whom (Some words not found in SR-GNT: οὗ ἐστίν ἡ παρουσία κατʼ ἐνέργειαν τοῦ Σατανᾶ ἐν πάσῃ δυνάμει καί σημείοις καί τέρασιν ψεύδους)

Here, Paul is using the possessive form to describe work that Satan does. If this is not clear in your language, you could state this explicitly. Alternate translation: [Satan will bring this man and will work through him]

οὗ

˱of˲_whom

Here, whom refers back to the man of lawlessness. Alternate translation: [of the man of lawlessness]

Note 2 topic: figures-of-speech / hyperbole

ἐν πάσῃ δυνάμει, καὶ σημείοις, καὶ τέρασιν ψεύδους

in every power (Some words not found in SR-GNT: οὗ ἐστίν ἡ παρουσία κατʼ ἐνέργειαν τοῦ Σατανᾶ ἐν πάσῃ δυνάμει καί σημείοις καί τέρασιν ψεύδους)

Here, all is hyperbole. It can apply to: (1) only power, with the meaning “much” or “great.” Alternate translation: [with great power to do signs and false wonders] or (2) power, signs, and wonders, with the meaning [many kinds of.] Alternate translation: [with many kinds of power, signs, and false wonders] or (3) a combination of the two. Alternate translation: [with much power to do all kinds of signs and false wonders]

Note 3 topic: figures-of-speech / abstractnouns

ἐν πάσῃ δυνάμει, καὶ σημείοις, καὶ τέρασιν ψεύδους

in every power (Some words not found in SR-GNT: οὗ ἐστίν ἡ παρουσία κατʼ ἐνέργειαν τοῦ Σατανᾶ ἐν πάσῃ δυνάμει καί σημείοις καί τέρασιν ψεύδους)

If your language does not use an abstract noun for the idea of power, you can express the same idea in another way. Alternate translation: [with very powerful signs and false wonders] or [who made him very powerful to do signs and false wonders]

Note 4 topic: figures-of-speech / doublet

καὶ σημείοις, καὶ τέρασιν ψεύδους

(Some words not found in SR-GNT: οὗ ἐστίν ἡ παρουσία κατʼ ἐνέργειαν τοῦ Σατανᾶ ἐν πάσῃ δυνάμει καί σημείοις καί τέρασιν ψεύδους)

The words signs and wonders often occur together and mean basically the same thing. The repetition is used to emphasize how amazing they are. If your language does not have two words for this or does not use repetition to do this, you can use one word and provide emphasis in another way. Alternate translation: [and amazing false miracles]