The memory of all that blood was enough to 'make my flesh crawl/creep'. [=to make me feel disgusted, afraid, etc.]
I try to get up early and exercise, though sometimes 'the spirit is willing but the flesh is weak'.
pleasures of the 'flesh' [=physical pleasures, such as eating, drinking, and having sex]
(..) The ocean between a Christian and a heathen. Our hands can reach across it as easily as that. But that's just a joining of the flesh. What else is missing? Joining of our souls. If our hands are touching, our souls must be touching. But your soul is heathen. If my soul is content to be heathen... and yours content to be Christian... let's not question flesh for wanting to remain flesh. You'll be in England soon. Suppose Aella releases you from your pledge. Then I'd be free. (..)1958 The Vikings