What's The Difference?

By way of setting the scene, it's important to know that I'm participating in a Sunday school class on the book of Ephesians and a Bible study by Kay Arthur on Covenant. Each day I spend time in prayer and work on a section of one book or the other. Well, except for Sunday. On Sunday I generally ignore both books and, I don't know, read a Psalm or something.

So. Yesterday. I decided to work on my Covenant study. Garrett was playing in the backyard with a friend and Matthew was sleeping. I carried my book, Bible, and colored pencils (it's an inductive study which led to Garrett's friend asking, "Are you coloring?" with a tone that clearly expressed, Wow, lady, you are way too old be coloring.) up from the basement and sat down at the kitchen table.

But when I went downstairs to get the book I thought about what the study would be on that day. We'd already explored both the covenants between David and Jonathan. I thought, perhaps, Jonathan's son might grace the pages of my study.

"Oh," I said aloud, "maybe today will be about Methuselah." I descended the stairs. Wait. That doesn't sound right. "What's his name? Johnathan's son name is..." I know it. I know it. It's..."Mephibosheth." Now, because I talk to myself incessantly, I continued the one-sided conversation. "Who the heck is Methuselah? Oh yeah. She's the evil witch from Sleeping Beauty."

At that point I was standing in the middle of our office, completely confused. I picked up my work book. "Wait. No."

I began ascending the stairs. "Mephibosheth is Jonathan's son. Methuselah is the really old guy in Genesis. Maleficent is the creepy woman from Sleeping Beauty."

Can anyone else understand my confusion? Mephibosheth, Methuselah, Maleficent. What's the difference?