American Standard Version
saying, If thou hadst known in this day, even thou, the things which belong unto peace! but now they are hid from thine eyes.

Berean Study Bible
and said, “If only you had known on this day what would bring you peace! But now it is hidden from your eyes.

Douay-Rheims Bible
If thou also hadst known, and that in this thy day, the things that are to thy peace; but now they are hidden from thy eyes.

English Revised Version
saying, If thou hadst known in this day, even thou, the things which belong unto peace! but now they are hid from thine eyes.

King James Bible
Saying, If thou hadst known, even thou, at least in this thy day, the things which belong unto thy peace! but now they are hid from thine eyes.

World English Bible
saying, "If you, even you, had known today the things which belong to your peace! But now, they are hidden from your eyes.

Young's Literal Translation
saying -- 'If thou didst know, even thou, at least in this thy day, the things for thy peace; but now they were hid from thine eyes.

Luke 19:42 Additional Translations ...