Commitment to God Himself (not what He can produce) is what always separates the true worshippers of God from the false. As Jesus began to explain in these verses that He was the only way to the Father (Jn. 14:6) and that they would have to come through Him, the people grew angry. It always angers the flesh to think that all our righteous acts can't save us, but Jesus made it clear that our only part in salvation is to believe. Believe what? Believe on Jesus and His sacrifice - not ours. Salvation is a gift and cannot be purchased (Rom. 10:2-3). Many times, we get so intent on seeking God in one area that we forget the greatest miracle of all, which is the love and redemption given to us from God through His Son. God loves us so much!