The Mekhilta unpacks the declaration from (Exodus 15:6): "Your right hand, O Lord, is grand in power." The Hebrew phrase "nedari bakeach" is read as a compound — "na'eh" (comely) and "adir" (grand) — meaning God is both beautiful and mighty in His exercise of power.
But what makes this power truly grand? Not its swiftness to destroy, but its patience before destruction. The text points to the generation of the Flood as the defining example. God gave those people time — an entire grace period — to repent of their wickedness. The offer stood open. The door remained unlocked. (Genesis 6:3) records the divine limit: "My spirit shall not contend forever." Even God's patience has a boundary.
The generation of the Flood did not repent. They continued in their corruption until they had, as the Mekhilta puts it, "consummated their evil" before God. Only then — only after every opportunity for return had been exhausted — did God decree their destruction.
This reading from the Mekhilta DeRabbi Yishmael (Tractate Shirah 5:8) redefines what it means for God's right hand to be "grand in power." True grandeur is not the ability to strike immediately. It is the restraint to wait, to offer a path back, and to act only when mercy has been fully spent. Power without patience is merely force. Power with patience is divine.