535. Did the Israelites see God face to face on Mount Horeb?

Yes, they saw him face to face.

The LORD our God made a covenant with us in Horeb ... The LORD talked with you face to face in the mount out of the midst of the fire. Deuteronomy 5:2-4

No, they only heard a voice.

The LORD spake unto you out of the midst of the fire: ye heard the voice of the words, but saw no similitude; only ye heard a voice. Deuteronomy 4:12