And we’re relieved.  I’m sure that’s all you’ll need to tell the jury.  Here’s the thing:  If you need to tell us when you’re not lying, then the only conclusion we can make when you don’t tell us you’re not lying is that you are lying.  So, in essence, when you tell somebody that you’re “not going to lie,” then you admit you are a liar.  And if we know you are a liar (by your own admittance), do you think we’re going to believe you when you say you’re not lying?  Fat chance of that.  And invoking the name of God (any god, you choose) to show your honesty (such as, “I swear to God!  I’m not lying!”) only makes you sound like you’re lying that much more.

This whole honesty thing also includes phrases like “to be honest,” or even its cousin “to tell the truth.”  I’m not going to lie; if you have to tell me you’re being honest for me to believe you, then you might as well not even try.  And that’s the truth.