'Ages' in the Bible

Now to Him who has power to strengthen you according to my gospel and the proclamation about Jesus Christ, according to the revelation of the mystery kept silent for long ages

On the contrary, we speak God’s hidden wisdom in a mystery, a wisdom God predestined before the ages for our glory.

Now these things happened to them as examples, and they were written as a warning to us, on whom the ends of the ages have come.

so that in the coming ages He might display the immeasurable riches of His grace through His kindness to us in Christ Jesus.

and to shed light for all about the administration of the mystery hidden for ages in God who created all things.

This is according to His eternal purpose accomplished in the Messiah, Jesus our Lord.

the mystery hidden for ages and generations but now revealed to His saints.

Otherwise, He would have had to suffer many times since the foundation of the world. But now He has appeared one time, at the end of the ages, for the removal of sin by the sacrifice of Himself.