'Completion' in the Bible

in the first year of his reign I, Daniel, noted in the Scripture the total years that were assigned by the message from the LORD to Jeremiah the prophet for the completion of the desolations of Jerusalem: 70 years.

"Seventy weeks have been determined concerning your people and your holy city to put an end to rebellion, to bring sin to completion, to atone for iniquity, to bring in perpetual righteousness, to seal up the prophetic vision, and to anoint a most holy place.

desirable bread I have not eaten, and flesh and wine hath not come in unto my mouth, and I have not anointed myself at all, till the completion of three weeks of days.

And I hear the one clothed in linen, who is upon the waters of the flood, and he doth lift up his right hand and his left unto the heavens, and sweareth by Him who is living to the age, that, 'After a time, times, and a half, and at the completion of the scattering of the power of the holy people, finished are all these.'