en_tn/luk/02/22.md

When the required number ... had passed

This shows the passing of time before this new event. (See: rc://en/ta/man/translate/writing-newevent)

the required number of days

This can be stated in active form. Alternate translation: "the number of days that God required" (See: rc://en/ta/man/translate/figs-activepassive)

for their purification

"for them to become ceremonially clean." You can also state God's role. Alternate translation: "for God to consider them to be clean again" (See: rc://en/ta/man/translate/figs-explicit)

to present him to the Lord

"to bring him to the Lord" or "to bring him into the Lord's presence." This was a ceremony acknowledging God's claim on the firstborn children who were male.