Charles Spurgeon Commentary Matthew 14:7

"Whereupon he promised with an oath to give her whatsoever she should ask." — Matthew 14:7 (ASV)

A foolish promise and a wicked oath. Men of Herod’s kind are always quick to make oaths. Men should understand what they are committing to when they promise and never put their signature to a blank document that another person can fill in, for they might thereby sign away everything they have.

Besides, a mere act of immodest posturing could never deserve such a large reward. Herod was surely as much a fool as a scoundrel. Had wine and lust robbed him of his senses?