required threshhold of faith required for Christians to be saved is not clear

The requirements of salvation are simple, but there are many doctrines that follow and are correct, but not necessary to know for salvation. If you declare with your mouth, "Jesus is Lord," and believe in your heart that God raised him from the dead, you will be saved. Romans 10:9 I take it you are educated in Catholic doctrines to some extent, so much of this may be familiar, but I will start from the top so we can be assured of the consistency of my arguments. Man is sinful, and requires salvation: "...but you must not eat from the tree of the knowledge of good and evil, for when you eat from it you will certainly die." Genesis 2:17 Jesus said to him, "Let the dead bury their own dead, but you go and proclaim the kingdom of God." Luke 9:60 But because of his great love for us, God, who is rich in mercy, made us alive with Christ even when we were dead in transgressions"it is by grace you have been saved. Eph. 2:4-5 And the Lord God said, "The man has now become like one of us, knowing good and evil. He must not be allowed to reach out his hand and take also from the tree of life and eat, and live forever." Genesis 3:22 Disobeying God results in spiritual death, which leads to physical death. Since God is merciful and gracious, all we need to do for salvation is come back to him in simple faith, and obey him again. What does he command, and what does obedience look like, and how do we know obedience is enough? "Stand up, plead my case before the mountains; let the hills hear what you have to say. "Hear, you mountains, the Lord"s accusation; listen, you everlasting foundations of the earth. For the Lord has a case against his people; he is lodging a charge against Israel. "My people, what have I done to you? How have I burdened you? Answer me. ... With what shall I come before the Lord and bow down before the exalted God? Shall I come before him with burnt offerings, with calves a year old? Will the Lord be pleased with thousands of rams, with ten thousand rivers of olive oil? Shall I offer my firstborn for my transgression, the fruit of my body for the sin of my soul? He has shown you, O mortal, what is good. And what does the Lord require of you? To act justly and to love mercy and to walk humbly with your God. Micah 6 One of the teachers of the law came and heard them debating. Noticing that Jesus had given them a good answer, he asked him, "Of all the commandments, which is the most important?" "The most important one," answered Jesus, "is this: "Hear, O Israel: The Lord our God, the Lord is one. Love the Lord your God with all your heart and with all your soul and with all your mind and with all your strength." The second is this: "Love your neighbor as yourself." There is no commandment greater than these." "Well said, teacher," the man replied. "You are right in saying that God is one and there is no other but him. To love him with all your heart, with all your understanding and with all your strength, and to love your neighbor as yourself is more important than all burnt offerings and sacrifices." When Jesus saw that he had answered wisely, he said to him, "You are not far from the kingdom of God." Mark 12:28-34 Not far, but not there yet. Why? Entering the kingdom of God requires that we trust Christ, who told us to trust in his sacrifice as the final one for our sins, of which this teacher of the law was not yet aware. "No one can come to me unless the Father who sent me draws them, and I will raise them up at the last day. It is written in the Prophets: "They will all be taught by God." Everyone who has heard the Father and learned from him comes to me. No one has seen the Father except the one who is from God; only he has seen the Father. Very truly I tell you, the one who believes has eternal life. I am the bread of life. Your ancestors ate the manna in the wilderness, yet they died. But here is the bread that comes down from heaven, which anyone may eat and not die. I am the living bread that came down from heaven. Whoever eats this bread will live forever. This bread is my flesh, which I will give for the life of the world." ... Jesus said to them, "Very truly I tell you, unless you eat the flesh of the Son of Man and drink his blood, you have no life in you. Whoever eats my flesh and drinks my blood has eternal life, and I will raise them up at the last day. For my flesh is real food and my blood is real drink. Whoever eats my flesh and drinks my blood remains in me, and I in them. Just as the living Father sent me and I live because of the Father, so the one who feeds on me will live because of me. This is the bread that came down from heaven. Your ancestors ate manna and died, but whoever feeds on this bread will live forever." John 6 He then began to teach them that the Son of Man must suffer many things and be rejected by the elders, the chief priests and the teachers of the law, and that he must be killed and after three days rise again. He spoke plainly about this, and Peter took him aside and began to rebuke him. Mark 8:31 "My children, I will be with you only a little longer. You will look for me, and just as I told the Jews, so I tell you now: Where I am going, you cannot come. ... Simon Peter asked him, "Lord, where are you going?" Jesus replied, "Where I am going, you cannot follow now, but you will follow later." ... "Do not let your hearts be troubled. You believe in God; believe also in me. My Father"s house has many rooms; if that were not so, would I have told you that I am going there to prepare a place for you? And if I go and prepare a place for you, I will come back and take you to be with me that you also may be where I am. You know the way to the place where I am going." Mark 13-16 If you believe God, you will believe His Son. His Son said you must trust in his sacrifice. Other doctrines we might disagree on, but getting right with God is most important. And getting right with Him requires atonement for sin, which He provided for us. Salvation: The work is done by God, all we need to do is whole-heartedly accept the sacrifice (feed on his flesh, drink of his blood for the nurishment of real, everlasting life). Jesus answered her, "If you knew the gift of God and who it is that asks you for a drink, you would have asked him and he would have given you living water." "Sir," the woman said, "you have nothing to draw with and the well is deep. Where can you get this living water?Are you greater than our father Jacob, who gave us the well and drank from it himself, as did also his sons and his livestock?" Jesus answered, "Everyone who drinks this water will be thirsty again, but whoever drinks the water I give them will never thirst. Indeed, the water I give them will become in them a spring of water welling up to eternal life." John 10:4-13