GOD'S WORD® Translation
To swear an oath by the temple is to swear by it and by the one who lives there.

American Standard Version
And he that sweareth by the temple, sweareth by it, and by him that dwelleth therein.

Berean Study Bible
And he who swears by the temple swears by it and by the One who dwells in it.

Douay-Rheims Bible
And whosoever shall swear by temple, sweareth by it, and by him that dwelleth in it:

English Revised Version
And he that sweareth by the temple, sweareth by it, and by him that dwelleth therein.

King James Bible
And whoso shall swear by the temple, sweareth by it, and by him that dwelleth therein.

World English Bible
He who swears by the temple, swears by it, and by him who was living in it.

Young's Literal Translation
and he who did swear by the sanctuary, doth swear by it, and by Him who is dwelling in it;

Matthew 23:21 Additional Translations ...