2 occurrences across the corpus

King James Version

Ezekiel 47:3

And when the man that had the line in his hand went forth eastward, he measured a thousand cubits, and he brought me through the waters; the waters were to the ankles.

OT Pseudepigrapha

The Letter of Aristeas 4:10

The construction of the altar was in keeping with the place itself and with the burnt offerings which were consumed by fire upon it, and the approach to it was on a similar scale. 11 There was a gradual slope up to it, conveniently arranged for the purpose of decency, and the ministering priests were robed in linen garments, down to their ankles.