'Ages' in the Bible

Is there a thing of which it may be said, "Behold, this is new?" It has been long ago, in the ages which were before us.

Israel will be saved by Yahweh with an everlasting salvation. You will not be disappointed nor confounded to ages everlasting.

(14:24) Now to him who is able to establish you according to my Good News and the preaching of Jesus Christ, according to the revelation of the mystery which has been kept secret through long ages,

Now all these things happened to them by way of example, and they were written for our admonition, on whom the ends of the ages have come.

that in the ages to come he might show the exceeding riches of his grace in kindness toward us in Christ Jesus;

and to make all men see what is the administration of the mystery which for ages has been hidden in God, who created all things through Jesus Christ;

the mystery which has been hidden for ages and generations. But now it has been revealed to his saints,

or else he must have suffered often since the foundation of the world. But now once at the end of the ages, he has been revealed to put away sin by the sacrifice of himself.