...is an integral part
of the implied COVENANT of friendship.
The Big Bang Theory Season 2, Episode 5
A binding COVENANT that,
in its 31 pages,
The Big Bang Theory Season 5, Episode 10
...with the Ark of the Covenant. Ha, ha.
The Big Bang Theory Season 8, Episode 19
...so that I could choose whether I wanted
to accept the COVENANT of secret-keeping.
The Big Bang Theory Season 2, Episode 1