Maybe this will sink in, this time. I certainly pray so.
It is your wording that makes it an ERROR.
You say "HAVING TO BELIEVE", when JESUS SAYS "WILL BELIEVE".
John 13:19 (HCSB)
[SUP]19 [/SUP] “I am telling you now before it happens, so that when it does happen you will believethat I am ⌊He⌋.
John 17:20 (NRSV)
[SUP]20 [/SUP] "I ask not only on behalf of these, but also on behalf of those who will believe in me through their word,
John 14:15 (HCSB)
[SUP]15 [/SUP] “If you love Me, you will keep My commands.
Romans 5:5 (NRSV)
[SUP]5 [/SUP] and hope does not disappoint us, because God's love has been poured into our hearts through the Holy Spirit that has been given to us.
Even your verse Rom. 1:16 above shows the word "believes" in the Greek is Present Tense, something that is always going on, in our hearts, AFTER we are BORN AGAIN.
Contuing to Believe is an ongoing Lifestyle empowered by the HOLY SPIRIT, Who is doing this through GOD's LOVE that He poured into one's heart and He will keep doing it. Are you not saying that the Work the Holy Spirit is doing in one's heart is LESS THAN PERFECT; when you say some Stop Believing? Those who STOP Believing, prove their belief was only in the intellect of their brain, and
NOT the Holy Spirit in their heart empowering them to continue to Believe.
It proves they NEVER WERE BORN AGAIN.
John 14:26 (NASB)
[SUP]26 [/SUP] "But the Helper, the Holy Spirit, whom the Father will send in My name, He will teach you all things, and bring to your remembrance all that I said to you.
Philippians 1:6 (HCSB)
[SUP]6 [/SUP] I am sure of this, that He who started a good work in you will carry it on to completion until the day of Christ Jesus.
Even in the Old Testament, it says "WILL BELIEVE", implying something that is ongoing in a true believer.
Exodus 4:5 (CSBBible)
[SUP]5 [/SUP] "This will take place," he continued, "so that they will believe that the LORD, the God of their fathers, the God of Abraham, the God of Isaac, and the God of Jacob, has appeared to you."
You by saying "HAVING TO BELIEVE", puts the emphasis on SELF, which is ERROR; WHEN THE TRUTH IS: IF THEY HAVE THE HOLY SPIRIT IN THEIR HEARTS, HE WILL EMPOWER THEM TO CONTINUE TO BELIEVE. THUS WILL BELIEVE is the correct terminology for a TRULY BORN AGAIN BELIEVER, and HAVING TO KEEP, refers to one mimicking Christianity in his or her brain.