What is this cross formation/sign of the cross? I've never heard of it, at least not in those terms, but I have never darkened the door of an IFB church either. Is it perhaps a reference to positioning the arms a certain way while going under?
Chris,
This is a teaching that I had heard not only in that IFB church but other IFB churchs, but not held exclusively or universally in IFB churches, I have learned. Also a Pentecostal Preacher who was my uncle taught this. It is a teaching of a significance in the position of the of the person in relation to the water forming a 'cross' with the person standing vertically in water that is horizontal. The person is driven backward into the water being leveled to the water and submerged under the water then brought back vertical to the standing position forming the 'cross' with the water. They made much of the visible "symbolism" of the cross made, although this view only tends itself to modern Baptistic Fonts with plexiglass fronts facing the congregation, the plunging backward under the water as a "symbol" of burial under the earth, even though it is not earth it is water & Christ was buried in a tomb not under ground, and the Resurrection of Christ from death, as the believer is lifted out of the "death of burial in water
with Christ"
I think it all goes to show how much uninspired human minds can place supposed symbolism above the thing signified. (Or make more of symbolism than the word of God itself does.)