Romans 9:18

Therefore hath he mercy on whom he will have mercy, and whom he will he hardeneth.
— Romans 9:18, King James Version

In other translations

World English Bible (WEB)

So then, he has mercy on whom he desires, and he hardens whom he desires.

American Standard Version (ASV)

So then he hath mercy on whom he will, and whom he will he hardeneth.

Young's Literal Translation (YLT)

so, then, to whom He willeth, He doth kindness, and to whom He willeth, He doth harden.