What does it mean to have great faith?

Great faith, as illustrated in Matthew 15, is characterized by unwavering trust in Christ’s ability to save and help, even when circumstances seem dire. The Canaanite woman exemplified this faith by pleading for mercy, despite being reminded that Jesus was sent to the lost sheep of Israel. Her great faith was evident as she acknowledged her position before God, 'Yet the dogs eat of the crumbs which fall from their masters' table.' This understanding combined with her persistent cry illustrates that great faith is not just belief, but deep reliance and trust in Christ to fulfill His promises.