What does the Bible say about being hewn from a rock?

In Isaiah 51:1, the Scripture exhorts believers to look unto the rock from which they were hewn, illustrating how God has carved out His people from Himself, establishing them on a firm foundation. This rock depicts Christ, the cornerstone, from whom all believers derive their spiritual identity and strength. The metaphor emphasizes God's sovereign work in salvation, where He has chosen and fashioned His people for Himself, distinguishing them from the world and placing them securely in Him.