For mine iniquities are gone over mine head: as an heavy burden they are too heavy for me.
For mine iniquities are gone over mine head - like waves over a drowning man (Psalms 42:7; Psalms 124:4-5; cf. Psalms 40:12).
As an heavy burden they are too heavy for me. But they are not "too heavy" for Messiah, who, as the Sinbearer Himself, gives rest to the heavy laden (Matthew 11:28; Isaiah 53:4; Isaiah 53:6; Isaiah 53:11).