Deuteronomy 33:25

Thy shoes shall be iron and brass; and as thy days, so shall thy strength be.
— Deuteronomy 33:25, King James Version

In other translations

World English Bible (WEB)

Your bars shall be iron and brass; As your days, so shall your strength be.

American Standard Version (ASV)

Thy bars shall be iron and brass; And as thy days, so shall thy strength be.

Young's Literal Translation (YLT)

Iron and brass <FI>are<Fi> thy shoes, And as thy days--thy strength.