'Age' in the Bible

Where [is] the wise person? Where [is] the scribe? Where [is] the debater of this age? Has not God made foolish the wisdom of the world?

Now we do speak wisdom among the mature, but wisdom not of this age or of the rulers of this age, who are perishing,

which none of the rulers of this age knew. For if they had known [it], they would not have crucified the Lord of glory.

Let no one deceive himself. If anyone thinks [himself] to be wise among you in this age, let him become a fool, in order that he may become wise.