'Completion' in the Bible

Then Paul took along the men on the next day, [and] [after he] had purified himself together with them, he entered into the temple [courts], announcing the completion of the days of purification until {the time} the offering would be presented on behalf of each one of them.

Then desire, [after it] has conceived, gives birth to sin, and sin, [when it] is brought to completion, gives birth to death.