With an attitude of humility (Proverbs 15:33), the blind men seek Jesus' mercy in healing, giving Him praise and honor. We have no merits for any blessing from God. As Paul writes in Ephesians 2:8-9, these things are given by grace, not because of anything we are or have done.
The blind men not only honor Christ in their request, but also humble themselves. They do not ask Him to be just to them, for all have sinned and deserve death (Romans 3:23), but in their humility they ask for mercy. Had they asked for justice, they would have been asking for their "rights." Demanding rights is an arrogant approach, the opposite of humility. In emphasizing rights, a person ignores his responsibilities.
Another positive characteristic the blind men exemplify is that they continue to follow Christ until they receive an answer to their request—they persevere. In spite of the crowds, they keep following Him along the road, and when He stops and enters a house, they do not give up but go into the house after Him. When we do not receive an answer to a prayer the first few times we ask, we often quit praying and sometimes indirectly accuse God of failing to act on our behalf. However, delay in answering prayer is not necessarily denial. It may be to test our faith and strengthen it.
If we desire blessings from God, we have to persevere in pursuing them. God does not usually give special blessings to those who seek them half-heartedly. As parents, we use the same method with our own children. We sometimes delay our response until we know whether they are truly sincere in their request, and until we determine how important it is to them and how hard they are willing to work for it.
Martin G. Collins
The Miracles of Jesus Christ: Healing Two Blind Men (Part One)