2 Kings 20:8

And Hezekiah said - Previous to the actual recovery, Hezekiah, who at first may have felt himself no better, asked for a “sign” that he would indeed be restored to health.

Asking for a sign is a pious or a wicked act according to the spirit in which it is done. No blame is attached to the requests of Gideon Judges 6:17, Judges 6:37, Judges 6:39, or to this of Hezekiah, because they were real wishes of the heart expressed humbly. The “evil generation” that “sought for a sign” in our Lord’s days did not really want one, but made the demand captiously, neither expecting nor wishing that it should be granted.