Deuteronomy 5:5

I stood between the Lord and you at that time
Between the Word of the Lord and you, as the Targums of Onkelos and Jonathan; that is, about that time, not at the exact precise time the ten commandments were delivered, for these were spoken immediately to the people; but when the ceremonial law was given, which was ordained by angels, in the hand of a mediator, ( Galatians 3:19 ) , and which was at the request of the people as follows, terrified by the appearance of the fire out of which the moral law was delivered:

to show you the word of the Lord;
not the decalogue, that they heard with their own ears, but the other laws which were afterwards given, that were of the ceremonial and judicial kind:

for ye were afraid by reason of the fire, and went not up into the
mount;
lest they should be consumed by it: and indeed bounds were set about the mount, and they were charged not to break through:

saying;
this word is in connection with the preceding verse, the Lord's talking out of the midst of the fire, when he said what follows.