Regarding Black Holes...

If there were a series of masses approximately evenly distributed around the circumference of a sphere, would this not result in a strong gravitational pull from the origin of this imaginary sphere? And assuming that mass density in space around this hypothetical sphere was approximately randomly distributed, would this gravitational force not attract those surrounding masses towards the origin? And if so, would not the momentum of these masses necessarily be great enough so as to pass through this imaginary origin at very rapid speed, but unless affected by an outward force not leave the gravitational field, but make it stronger, so that what we end up with is an ever-expanding radius of gravitational pull coming from an empty area of space? How is this not like a black hole?

edit--nevermind this dumb question..