1 Corinthians 10 v 1


1 Corinthians 10:1 
Moreover, brethren, I would not that ye should be ignorant, how that all our fathers were under the cloud, and all passed through the sea; 


10:1. So that the Corinthians might not think God’s discipline would be an unlikely eventuality for a people so blessed as they (1:5), Paul cited the illustration of another group of people who were greatly blessed by God but yet experienced His severe discipline. Israel of old was reckless and unrestrained after her physical and spiritual freedom from tyranny in Egypt. As a result God meted out severe discipline by cutting short the lives of many Israelites. They were all in the “race” (9:24), but almost all were disqualified (9:27) in spite of their advantages. 

Five advantages were enjoyed by Israel. First, all the liberated Israelites enjoyed the supernatural guidance (Ex. 13:21) and protection (Ex. 14:19-20) of the pillar of cloud in their Exodus from Egypt. The Corinthians had similarly experienced God’s guidance (cf. Luke 1:79) and protection (cf. 1 Peter 1:5). Second, all Israelites passed through the sea and experienced a miraculous deliverance from those who sought to take their lives (Ex. 14:21-28). So too had the Corinthians experienced a miraculous deliverance—salvation (cf. Heb. 2:14-15; Gal. 1:4). 

Excerpt from: 
Walvoord, J. F., Zuck, R. B., & Dallas Theological Seminary. (1983-c1985). 
The Bible Knowledge Commentary : An Exposition of the Scriptures. 
Wheaton, IL: Victor Books.