John Wesley on Genesis 26:7

He said, she is my sister - So Isaac enters into the same temptation that his father had been once and again surprised and overcome by, viz. to deny his wife, and to give out that she was his sister! It is an unaccountable thing, that both these great and good men should be guilty of so odd a piece of dissimulation, by which they so much exposed both their own and their wives reputation.