en_tn/luk/09/28.md

And it happened

This phrase is used here to mark an important event in the story. If your language has a way for doing this, you could consider using it here.

these words

This refers to what Jesus said to his disciples in the preceding verses.

into the mountain

This could be translated as "on the side of a mountain." It is unclear how far up the mountain they went.

the appearance of his face looked different

This could be translated as "the appearance of his face changed."

white and dazzling

"shining white and brilliant" or "brilliant white and shining" or "dazzling white and shining like lightening" (UDB).