Psalm 22:6 (a) This type represents the utter degradation and worthlessness of human beings in GOD's sight. When JESUS took the sinner's place, He called Himself a worm because the one for whom He died was considered by GOD as a worm. (See also Isaiah 41:14).
Isaiah 66:24, (b) No doubt this is an emblem of the gnawing pains of conscience which must be endured constantly and forever by those who are lost, and are in the lake of fire. (See also Mark 9:43)).