Prayer of David/Words of Solomon

O God, thou hast taught me from my youth: and hitherto have I declared thy wondrous works. Now also when I am old and grayheaded, O God, forsake me not; until I have shewed thy strength unto this generation, and thy power to every one that is to come. Psalm 71:17,18
Vanity of vanities, saith the Preacher, vanity of vanities; all is vanity. I have seen all the works that are done under the sun; and, behold, all is vanity and vexation of spirit. Let us hear the conclusion of the whole matter: Fear God, and keep his commandments: for this is the whole duty of man. Ecclesiastes 1:2,14 & 12:13