Psalm 92:14-15

[Growing in grace] they shall still bring forth fruit in old age; they shall be full of sap [of spiritual vitality] and [rich in the] verdure [of trust, love, and contentment]. [They are living memorials] to show that the Lord is upright and faithful to His promises; He is my Rock, and there is no unrighteousness in Him. [Rom. 9:14.]