'Mount Sinai' in the Bible

This set of circumstances contains an illustration; for these two women [Hagar and Sarah] represent the two Agreements [between God and mankind]. The one [Agreement], given at Mount Sinai, represents Hagar, whose children became [the Israelites], enslaved under bondage [to the requirements of the law of Moses].

Now this woman, Hagar, is similar to Mount Sinai, in Arabia, and represents the present [earthly] Jerusalem [i.e., Israel], consisting of children in bondage [to the law of Moses].

These priests serve [in a sanctuary] that is [only] a copy and a foreshadow of the heavenly one. Now Moses was warned [by God] when he was about to build the Tabernacle, for God said [Ex. 25:40], "See that you make everything according to the pattern that was shown to you on the mountain [i.e., Mount Sinai]."

[Unlike the Israelites at Mount Sinai] you [Christians] have not come to a mountain that can be touched and that burned with fire [See Ex. 19:12, 16-19; 20:18-21; Deut. 4:11]; to [a place of] darkness, gloom and wind;

Pay careful attention so that you do not refuse [to hear] God when He speaks to you. [See verse 9]. For if those people [i.e., the Israelites] did not escape [judgment] when they refused [to hear] Him who warned them on earth [i.e., God speaking through Moses at Mount Sinai], how much less [likely] will we escape [judgment] if we reject Him who warns from heaven [i.e., Christ]?