'Delight' in the Bible

Let your head be uncovered and your hair cut off in sorrow for the children of your delight: let the hair be pulled from your head like an eagle's; for they have been taken away from you as prisoners.

Who is a God like you, offering forgiveness for evil-doing and overlooking the sins of the rest of his heritage? he does not keep his wrath for ever, because his delight is in mercy.