JOHN 20:29
Jesus said that the greatest faith He had ever seen was a faith that didn't have to see to believe. In Matthew 8:10 when the centurion asked for healing of his servant, Jesus was willing to go and heal him; but because of being a centurion, he was good with Jesus just speaking the healing right there. Jesus' response was the centurion had the greatest faith in all Israel.
Jesus said that Thomas had to see to believe but those who believed without seeing received a greater blessing. We are to walk by faith and not by sight.
Without faith it is impossible to please God and if we want to walk in greater faith, we have to believe and trust in the Word of God. His word is supernatural enough so we shouldn't need to see great things to believe.
No matter what we see, hear or experience, we are to believe God's promises just as those who received in the Bible, then He will marvel at our faith.
God's Word needs no confirmation and it must be the absolute authority in our lives.