'Lengthening' in the Bible

Prepare war against her. Arise, and let us go up at noon. Woe unto us! for the day hath declined, for the shadows of the evening are lengthening.

Therefore, O king, let my counsel be acceptable unto thee, and break off thy sins by righteousness, and thine iniquities by shewing mercy to the poor; if it may be a lengthening of thy tranquillity.