This is a Celtic knot "Tree of Life" pendant. I searched for a pendant with a tree pattern on it, but I didn't like any of the ones I found, so I made my own. Genesis 3:22 - 3:24: "And the LORD God said, Behold, the man is become as one of us, to know good and evil: and now, lest he put forth his hand, and take also of the tree of life, and eat, and live for ever: 23 Therefore the LORD God sent him forth from the garden of Eden, to till the ground from whence he was taken. 24 So he drove out the man; and he placed at the east of the garden of Eden Cherubims, and a flaming sword which turned every way, to keep the way of the tree of life."