'Old' in the Bible

They will perish, but you continue. And they will all grow old like a garment,

The Holy Spirit is making clear that the way into the holy place had not yet appeared as long as the old tabernacle was standing.

For by it the people of old received God's commendation.

By faith, even though Sarah herself was barren and he was too old, he received the ability to procreate, because he regarded the one who had given the promise to be trustworthy.