Luke 9:29 Then it happened! During the occasion for Him to be continuing in speaking and thinking goodness (or: praying), the form (external appearance) of His face became different, and His clothing (apparel) continued flashing forth bright whiteness and brilliant luster.

JMNT⁽ⁱ⁾ ²⁹ Then it happened! During the [occasion] for Him to be continuing in speaking and thinking goodness (or: praying), the form (external appearance) of His face became different, and His clothing (apparel) continued flashing forth bright whiteness and brilliant luster.