Why does Deborah name Sinai?

In naming Sinai, she does not intend to give a description of the Lord's coming to Sinai. Rather, she mentions Sinai, as well as Seir and Edom, to evoke the thought that He had come from there to His people’s aid. In this way she drew a connection between the Lord’s revelation in the desert of Sinai and the nation’s recent deliverance from the hand of Sisera. What she meant to say was that the God who had just come to liberate his people was the very same God who came to the Israelites at Sinai and took them under his protection. His most recent coming was merely an extension of His coming back then.¹