… and now manifested and revealed among all peoples through the prophetic Scriptures, in accordance with the commandment of the eternal God, to induce them to the obedience of faith.
Hebrews 11: 8-13
8 By faith Abraham, being called, obeyed to go out to the place he was to receive as an inheritance; and he left without knowing where he was going. 9 By faith he dwelt as a stranger in the land of promise, as in a foreign land, dwelling in tents with Isaac and Jacob, co-heirs of the same promise, 10 because he expected the city that has foundations, whose architect and builder is God.11 By faith also Sarah herself, being sterile, received strength to conceive; and she gave birth even outside the time of age, because she believed that it was faithful who had promised. 12 Therefore, also, from one, and that one almost dead, they came out as the stars of heaven in multitude, and as the sand innumerable that is on the seashore.13 According to the faith all these died without having received the promises, but looking at them from afar, and believing and greeting them, and confessing that they were foreigners and pilgrims on earth.
So the other disciples told him: We have seen the Lord. He said to them, «If I do not see the mark of the nails in their hands, and put my finger in the place of the nails, and put my hand into their side, I will not believe.»
It is a faith that lasts only a while, until the first difficulties come.
Those on the stone are those who, having heard, receive the word with joy; but these have no roots; they believe for some time, and at the time of the test they depart.
It does not just believe, but leads to act according to the beliefs we have.
James 2: 14-26
My brethren, what will it profit if someone says that he has faith, and has no works? Can faith save him?
It is the faith of those who do not resign themselves to defeat and believe with conviction in the victory that Jesus Christ has already achieved.
I can do everything in Christ who strengthens me.
What Jesus found in the centurion of Capernaum, who believed that a single word spoken by him would heal his servant.
When Jesus heard it, he marveled, and said to those who followed him, «Assuredly, I say to you, not even in Israel have I found so much faith.
Genuine and faithful faith:
2 Timothy 1: 5
bringing to mind the unfeigned faith that is in you, which lived first in your grandmother Loida, and in your mother Eunice, and I am sure that in you too.
Perfect or divine faith:
It is the same faith of God that is given to us in the heart. It consists in an absolute trust in the Word of God, in its integrity, in its character.
Hebrews 11: 1
It is, then, faith the certainty of what is expected, the conviction of what is not seen.
Jesus said to them: Because of your little faith; For verily I say unto you, That if ye have faith as a mustard seed, say to this mountain, Get thee hence out of the way, and it will pass away; and nothing will be impossible for you.