'Once' in the Bible

but we speak God’s wisdom in a mystery, the wisdom once hidden [from man, but now revealed to us by God, that wisdom] which God predestined before the ages to our glory [to lift us into the glory of His presence].

And such were some of you [before you believed]. But you were washed [by the atoning sacrifice of Christ], you were sanctified [set apart for God, and made holy], you were justified [declared free of guilt] in the name of the Lord Jesus Christ and in the [Holy] Spirit of our God [the source of the believer’s new life and changed behavior].

For I am the least [worthy] of the apostles, and not fit to be called an apostle, because I [at one time] fiercely oppressed and violently persecuted the church of God.