New King James Version
Now also when I am old and grayheaded, O God, do not forsake me, Until I declare Your strength to this generation, Your power to everyone who is to come.

King James Bible
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.

American Standard Version
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.

Berean Study Bible
Even when I am old and gray, do not forsake me, O God, until I proclaim Your power to the next generation, Your might to all who are to come.

Douay-Rheims Bible
And unto old age and grey hairs: O God, forsake me not, Until I shew forth thy arm to all the generation that is to come: Thy power,

English Revised Version
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.

World English Bible
Yes, even when I am old and gray-haired, God, don't forsake me, until I have declared your strength to the next generation, your might to everyone who is to come.

Young's Literal Translation
And also unto old age and grey hairs, O God, forsake me not, Till I declare Thy strength to a generation, To every one that cometh Thy might.

Psalm 71:18 Additional Translations ...