American Standard Version
But when ye see the abomination of desolation standing where he ought not (let him that readeth understand), then let them that are in Judaea flee unto the mountains:

Berean Study Bible
So when you see the abomination of desolation standing where it should not be (let the reader understand), then let those who are in Judea flee to the mountains.

Douay-Rheims Bible
And when you shall see the abomination of desolation, standing where it ought not: he that readeth let him understand: then let them that are in Judea, flee unto the mountains:

English Revised Version
But when ye see the abomination of desolation standing where he ought not (let him that readeth understand), then let them that are in Judaea flee unto the mountains:

King James Bible
But when ye shall see the abomination of desolation, spoken of by Daniel the prophet, standing where it ought not, (let him that readeth understand,) then let them that be in Judaea flee to the mountains:

World English Bible
But when you see the abomination of desolation, spoken of by Daniel the prophet, standing where it ought not (let the reader understand), then let those who are in Judea flee to the mountains,

Young's Literal Translation
'And when ye may see the abomination of the desolation, that was spoken of by Daniel the prophet, standing where it ought not, (whoever is reading let him understand), then those in Judea, let them flee to the mountains;

Mark 13:14 Additional Translations ...