“My heart has become like melting wax in my belly.” By his belly Jesus means the weak in his Church. How did his heart become like wax? His heart is his Scripture, or rather his wisdom in the Scriptures. But Scripture was closed. Nobody understood it. When the Lord was crucified, it began to flow freely like wax, so that all the weak could understand Scripture. As a result of the crucifixion even the veil of the temple was torn, because what had previously been veiled was now revealed.
-St Augustine on Psalm 22.14