'Fulfilling' in the Bible

in the first year of his reign, I, Daniel, have understood by books the number of the years, (in that a word of Jehovah hath been unto Jeremiah the prophet,) concerning the fulfilling of the wastes of Jerusalem -- seventy years;

and as John was fulfilling the course, he said, Whom me do ye suppose to be? I am not he, but, lo, he doth come after me, of whom I am not worthy to loose the sandal of his feet.

and the uncircumcision, by nature, fulfilling the law, shall judge thee who, through letter and circumcision, art a transgressor of law.