en_tn/exo/34/05.md

stood with Moses there

"stood with Moses on the mountain"

he pronounced the name

"he spoke the name." Here "he" refers to Yahweh.

God is merciful and gracious

"God is fully of mercy and grace"

and abounding in

"and always shows" or "and is full of"

covenant faithfulness

See how you translated this in Exodus 20:4

But he will

Yahweh is speaking about himself.

I will by no means clear the guilty

This means that God will surely punish those who are guilty. AT: “I will punish those who are guilty.” (See: rc://en/ta/man/translate/figs-litotes)