'Us' in the Bible

and to give relief to you who are so distressed and to us as well when the Lord Jesus is revealed from heaven with His mighty angels in a flame of fire,

not to be quickly unsettled or alarmed either by a [so-called prophetic revelation of a] spirit or a message or a letter [alleged to be] from us, to the effect that the day of the Lord has [already] come.

So then, brothers and sisters, stand firm and hold [tightly] to the traditions which you were taught, whether by word of mouth or by letter from us.

Now may our Lord Jesus Christ Himself and God our Father, who has loved us and given us everlasting comfort and encouragement and the good [well-founded] hope [of salvation] by His grace,

Finally, brothers and sisters, pray continually for us that the word of the Lord will spread rapidly and be honored [triumphantly celebrated and glorified], just as it was with you;

Now we command you, believers, in the name of our Lord Jesus Christ and by His authority, that you withdraw and keep away from every brother or sister who leads an undisciplined life and does not live in accordance with the tradition and teaching that you have received from us.