'Period' in the Bible

To these he also showed himself alive after he suffered, by many proofs, appearing to them over a period of forty days, and speaking about God's Kingdom.

For a period of about forty years he put up with them in the wilderness.

He entered into the synagogue, and spoke boldly for a period of three months, reasoning and persuading about the things concerning the Kingdom of God.

Therefore watch, remembering that for a period of three years I didn't cease to admonish everyone night and day with tears.

Then after a period of fourteen years I went up again to Jerusalem with Barnabas, taking Titus also with me.