The years of our life are seventy, or even by reason of strength eighty; yet their span is but toil and trouble; they are soon gone, and we fly away.
Psalm 90:10 ESV
A theory of natural causes for the plagues does not do justice to the clear statements of the text. A particular order would be...
The Lord is at hand; do not be anxious about anything, but in everything by prayer and supplication with thanksgiving let your requests be...
Jesus, full of the Holy Spirit, returned from the Jordan and was led by the Spirit into the wilderness, where for forty days he...