'Completion' in the Bible

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.'