Psalms 71:15-18

My mouth shall tell of thy righteousness, And of thy salvation all the day; For I know not the numbers thereof. I will come with the mighty acts of the Lord Jehovah: I will make mention of thy righteousness, even of thine only. O God, thou hast taught me from my youth; And hitherto have I declared thy wondrous works. Yea, even when I am old and grayheaded, O God, forsake me not, Until I have declared thy strength unto the next generation, Thy might to every one that is to come.