1 Thessalonians 4:3

Τοῦτο γάρ ἐστιν θέλημα τοῦ Θεοῦ, ὁ ἁγιασμὸς ὑμῶν, ἀπέχεσθαι ὑμᾶς ἀπὸ τῆς πορνείας·

Toyto gar estin thelēma toy Theoy, o agiasmos ymōn, apechesthai ymas apo tēs porneias·

King James Version (KJV)

For this is the will of God, even your sanctification, that ye should abstain from fornication:

Modern English

It is God's will that you should be sanctified: that you should avoid sexual immorality;