Potiphar

Have you ever wondered why Potiphar's wife was so insistent on having an affair with Joseph? A word study answers the question.
And the Midianites sold him into Egypt unto Potiphar, an officer of Pharaoh's, and captain of the guard. (Genesis 37:36)
This seemingly incidental verse reveals much. Keyed to the word officer is the following note from page 37 of The Dake Annotated Reference Bible:

Potiphar--A Eunuch (Gen. 37:36)
Heb. cariyc, to castrate; a eunuch; valet of females' apartments and thus a minister of state, chamberlain (39:1; 40:2, 7; 1 Sam. 8:15; 1 Ki. 22:9; 2 Ki. 8:6; 24:12-15; 25:19; 1 Chr. 28:1; 2 Chr. 18:8).

It is translated chamberlain 13 times (2 Ki. 23:11; Esther 1:10-15; 2:3, 14, 15, 21; 4:4-5; 6:2, 14; 7:9) and eunuch 17 times (2 Ki. 9:32; 20:18; Isa. 39:7; 56:3-4; Jer. 29:2; 34:19; 38:7; 41:16; 52:25; Dan. 1:3-18). This may explain the unfaithfulness of Potiphar's wife (39:10-13). In the East many eunuchs had wives and even harems where they kept many women, but they bore no children.

Israel "borrowing" from Egypt
The hardening of Pharaoh's Heart
The Testimony
The Glory of God in Moses' face
The Glory of the Lord
Living a Long Life
Sickness and Disease