Acts 5:21 - "Now the high priest came and those who were with him and called together the council and all the senate of Israel, and sent to the prison to have them brought."
Psalm 105:22 - "To bind his princes at his pleasure; and teach his senators wisdom" (KJV).
The quotation from the Psalms is the only place in the Old Testament where we find the use of the term "senator;" generally the Hebrew uses the word "elder." It may have been this use of the term which made Luke think that there was a separate branch of the Great Sanhedrin which was composed of "senators." However, although some have thought that the Sanhedrin was in fact composed …
CSS Publishing Co., Inc., Occupations Of The Bible, by Stephen Stewart