"The Bible makes many references to the corners of the earth and support by pillars"
I would argue that the writers of the Bible never meant for these verses to be taken literally. I take the Bible literally where it talks about events, not where the authors used writing devices to make a point.
You are probably referring to things like:
"He shakes the earth from its place and makes its pillars tremble. (Job 9:6)"
"Where were you when I laid the earth's foundation? Tell me, if you understand. (Job 38:4)"
"for he views the ends of the earth and sees everything under the heavens. (Job 28:24)"
If you take these verses literally, you would think that the earth has 'foundations' like some ancient civilizations believed. But I think that 'foundation' here is meant in the same way as in Job 4:19: where it's clearly symbolic:
"God places no trust in his servants,
if he charges his angels with error,
how much more those who live in houses of clay,
whose foundations are in the dust,
who are crushed more readily than a moth!"
Do you see a difference between things like:
"And we have the word of the prophets made more certain, and you will do well to pay attention to it, as to a light shining in a dark place, until the day dawns and the morning star rises in your hearts."
Jesus answered her, "If you knew the gift of God and who it is that asks you for a drink, you would have asked him and he would have given you living water."
"My food," said Jesus, "is to do the will of him who sent me and to finish his work"
and:
"Jesus said to the servants, "Fill the jars with water"; so they filled them to the brim.
Then he told them, "Now draw some out and take it to the master of the banquet." They did so, and the master of the banquet tasted the water that had been turned into wine."
"Then the disciples went back to their homes, but Mary stood outside the tomb crying. As she wept, she bent over to look into the tomb and saw two angels in white, seated where Jesus' body had been, one at the head and the other at the foot."
Or in the Old Testament, compare
"He shakes the earth from its place and makes its pillars tremble. (Job 9:6)"
and:
"Then Moses stretched out his hand over the sea, and all that night the LORD drove the sea back with a strong east wind and turned it into dry land. The waters were divided, and the Israelites went through the sea on dry ground, with a wall of water on their right and on their left."
In the former cases, the writers were trying to make a point. In the latter cases, they were describing events. The Bible never implies that the descriptions of the earth, should be taken literally. But it does seem that we should take the flood, the parting of the sea, the Resurrection; literally.
So it's perfectly possible to believe that the earth is round but that all the Biblical events actually happened.
edit: in addition, as jad123 said, the verses don't even imply that the earth is flat in the first place. "circle of the earth", etc. and I think the Biblical writers used 'four corners of the world' just as we do today: it's a metaphor.