Muscle atrophy, often seen in people in wheelchairs, can lead to leg weakness. The power and ability to move one's legs stems from the interaction of two processes. These are the nerve signal that is sent to the muscles from the brain and passes via the spinal cord, and the muscle's intrinsic power to contract. Any interruption in this pathway in the lower limb can result in leg weakness. As such, leg weakness can be caused by a muscle disease or a nerve disease.
Justification by faith. Christians believe in justification by faith-that through their belief in Jesus as the Son of God, and in his death and resurrection, they can have a right relationship with God whose forgiveness was made once and for all through the death of Jesus Christ.hristians believe in justification by faith-that through their belief in Jesus as the Son of God, and in his death and resurrection, they can have a right relationship with God whose forgiveness was made once and for all through the death of Jesus Christ.
Grace in Christianity is the free and unmerited favour of God as manifested in the salvation of sinners and the bestowing of blessings. Common Christian teaching is that grace is unmerited mercy (favor) that God gave to humanity by sending his son to die on a cross, thus delivering eternal salvation. Bill Gothard, an American conservative Christian, has suggested God's grace gives us the desire and the power to do his will..