Faith is not just saying “Oh yes I know some stuff about Jesus”, the word as used in the bible means a lot more than the common English word 'faith' now means.
Faith in the New Testament is from pisteuo pisteuo and means “utterly cling to”, not just know something about someone, as the editors of the Aplified explain it in their forward,
“The first complete Bible produced by The Lockman Foundation was the Amplified Bible. The Amplified Bible is a translation that, by using synonyms and definitions, both explains and expands the meaning of words in the text by placing amplification in parentheses and brackets and after key words or phrases.
This unique system of translation allows the reader to more completely grasp the meaning of the words as they were understood in the original languages. Through multiple expressions, fuller and more revealing appreciation is given to the divine message as the original text legitimately permits.”
“Jesus said to her, I am [Myself] the
Resurrection and the Life. Whoever believes in (adheres to, trusts in, and relies on) Me,
although he may die, yet he shall live.” AMP
“I will not abandon you as orphans, I will come to you.
19 In a little while the world will not see me any longer, but you will see me; because I live, you will live too.
20 You will know at that time that I am in my Father and you are in me and I am in you.
21 The person who has my commandments and obeys them is the one who loves me. The one who loves me will be loved by my Father, and I will love him and will reveal myself to him.”
22 “Lord,” Judas (not Judas Iscariot) said, “what has happened that you are going to reveal yourself to us and not to the world?”
23 Jesus replied, “If anyone loves me, he will obey my word, and my Father will love him, and we will come to him and take up residence with him.
24 The person who does not love me does not obey my words. And the word you hear is not mine, but the Father's who sent me.
Therefore do not be surprised, brothers and sisters, if the world hates you.
14 We know that we have crossed over from death to life because we love our fellow Christians. The one who does not love remains in death.
15 Everyone who hates his fellow Christian is a murderer, and you know that no murderer has eternal life residing in him.
16 We have come to know love by this: that Jesus laid down his life for us; thus we ought to lay down our lives for our fellow Christians.
17 But whoever has the world's possessions and sees his fellow Christian in need and shuts off his compassion against him, how can the love of God reside in such a person?
18 Little children, let us not love with word or with tongue but in deed and truth.
19 And by this we will know that we are of the truth and will convince our conscience in his presence,
20 that if our conscience condemns us, that God is greater than our conscience and knows all things.
21 Dear friends, if our conscience does not condemn us, we have confidence in the presence of God,
22 and whatever we ask we receive from him, because we keep his commandments and do the things that are pleasing to him.
23 Now this is his commandment: that we believe in the name of his Son Jesus Christ and love one another, just as he gave us the commandment.
24 And the person who keeps his commandments resides in God, and God in him. Now by this we know that God resides in us: by the Spirit he has given us.