Faith is assurance of things hoped for, and a conviction of things not seen.
“...without faith it is impossible to please God”
What the Bible Says About Faith
Now faith is the substance of things hoped for, the evidence of things not seen.
By faith we understand that the worlds were framed by the word of God, so that the things which are seen were not made of things which are visible.
But without faith it is impossible to please Him, for he who comes to God must believe that He is, and that He is a rewarder of those who diligently seek Him.
When Jesus heard it, He marveled, and said to those who followed, “Assuredly, I say to you, I have not found such great faith, not even in Israel!”
if you have faith as a mustard seed, you will say to this mountain, ‘Move from here to there,’ and it will move; and nothing will be impossible for you.
Have faith in God. For assuredly I say to you, whoever says to this mountain, ‘Be removed and be cast into the sea,’ and does not doubt in his heart, but believes that those things he says will be done, he will have whatever he says. Therefore I say to you, whatever things you ask when you pray, believe that you receive them, and you will have them.
Therefore we conclude that a man is justified by faith apart from the deeds of the law.
Abraham believed God, and it was accounted to him for righteousness.
Therefore, having been justified by faith, we have peace with God through our Lord Jesus Christ, through Whom also we have access by faith into this grace in which we stand, and rejoice in hope of the glory of God.
So then faith comes by hearing, and hearing by the word of God.
For we walk by faith, not by sight.
2 Corinthians 5:7
Christ has redeemed us from the curse of the law, having become a curse for us (for it is written, “Cursed is everyone who hangs on a tree”), that the blessing of Abraham might come upon the Gentiles in Christ Jesus, that we might receive the promise of the Spirit through faith.
For by grace you have been saved through faith, and that not of yourselves; it is the gift of God.
...faith without works is dead.
And the prayer of faith will save the sick, and the Lord will raise him up.