“O woman, great is thy faith: be it unto thee even as thou wilt”…-Matthew 15:28

…and when He saw her, He said, “Daughter, be of good comfort; thy faith hath made thee whole.” …”According to your faith be it unto you.” – Matthew 9:22, 29

We may be quite sure that the one thing specially noteworthy in this woman’s case was her faith, first, because we have Christ’s word for it. He said unto her, “O woman, great is thy faith!” He did not say, “Great is thy love to thy child;” nor, “Great is thy earnestness;” nor, “Great is thy importunity;” but he put his finger on the power that had urged her forward, and he said, “O woman, great is thy faith!” And not in this case alone did Christ trace the blessing to faith, but in nearly every instance where a suppliant obtained favour from Him, faith was the medium of securing the mercy. Faith is mightier than all other available forces.

Besides this, we know that faith supports the other graces. If other graces can help a soul to plead with Christ, they all owe their power to faith. If it had not been for the faith which she had to support it, parental love would not have helped this woman much. If it had not been for faith, she would not have been earnest and importunate. Faith hangs on to Christ in the dark, it holds to a silent Christ, it holds to a refusing Christ, it holds to a rebuking Christ, and it will not let Him go. Faith is the great holdfast that hooks a soul on to the Saviour. ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/2253.cfm