Of the 17 times the word firmament is used in the Bible, over half (or 9) of the times are found in Genesis One. Firmament means an expanse or expansion of space and it refers to the expansion of space between the earth and God's heavenly abode. It is bound by the waters above and the waters below (Genesis 1:6-8). This explains why there are "waters that be above the heavens" (Psalm 148:4). Of the three heavens indicated in 2Corinthians 12:2, the firmament includes the first two heavens while the third heaven refers to God's dwelling place. The first heaven is the "open firmament of heaven" where the birds fly (Genesis 1:20). The second heaven is "firmament of the heaven" where the planets and stars reside (Genesis 1:14-15). As known to anyone who has considered the heavens as the work of God's finger (Psalm 8:3), the firmament exalts God. As the psalmist proclaims in Psalm 19:1, "The heavens declare the glory of God; and the firmament sheweth his handywork."
According to an article in Thursday's "Wall Street Journal," earlier this year on the day Muslims celebrate the willingness of Abraham to sacifice his son on Mt. Moriah (a son they claim was Ishmael), 25,000 sheep in Brussels, Belgium, had their heads turned to Mecca and were sacrificially killed by having their throats slit so that they would die from the shedding of their blood. Many of the Muslims will be eating their sheep for lunch that same day. Although home slaughters are illegal in Belguim, Muslims now make up over 15% of the one million people in the city of Brussels.