"... The Targums wished to avoid the appearance of disrespect for the patriarchs and matriarchs and other heroes of the faith, even in biblical expressions. Hence a body of interpretation grew up around certain problematic verses that insulated the patriarchs and others from disrespectful ideas and expressions. For instance, in Genesis 27:13, after Jacob expresses some fear that Rebecca’s plan to deceive Jacob will garner him execration instead of blessing, Rebecca uses an expression that had an air of ill-omen about it, and the Targums go to some lengths to expunge or soften it. Onkelos simply inserts a paraphrase that is only remotely motivated by the words of the text; but it avoids the unpropitious expression “your curse” and contributes to a sense of the story’s unity by harking back to the revelation that Rebecca received at Genesis 25:23 ..."