What does Deuteronomy 5:25 mean?

But now, why should we risk dying? If we keep hearing the Lord our God's voice, we're afraid we'll die, because this huge fire could consume us. If we hear God's voice again, we might not make it. Deuteronomy 5:25 - Modern Text Bible

(They're afraid that being so close to God's holiness could be fatal, so they want some distance.)