The Bible, in its original documents, is the inspired Word of God, the written record of His supernatural revelation of Himself to man, absolute in its authority, complete in its revelation, final in its content and without any errors in its statements.
The Lord Jesus Christ is fully God who took on flesh and dwelt on earth. He was without sin and gave Himself as a substitutionary sacrifice by shedding His blood and dying on the tree. He then came back from the dead. This was to pay for all sins, (past, present and future) for all who believe.