[10] The days of our years and ten; and if by reason of strength they be fourscore years, yet is their strength labour and sorrow; for it is soon cut off, and we fly away. [11] Who knoweth the power of thine anger? even according to thy fear, so is thy wrath. [12] So teach us to number our days, that we may apply our hearts unto wisdom. [13] Return, O LORD, how long? and let it repent thee concerning thy servants. [14] O satisfy us early with thy mercy; that we may rejoice and be glad all our days. [15] Make us glad according to the days wherein thou hast afflicted us, and the years wherein we have seen evil.