When Christians decide to speak for ABBA(GOD) who is going to hell or not is dangerous grounds for that Christian. That means ABBA(GOD) does not have the power, ability, authority or grace to change an unbeliever life. Maybe that person is trying to be ABBA(GOD) trying to change others in ones ability(fresh) instead of giving the glory to ABBA(GOD) because it is all about look what I have done. Paul was an atheist who was murdering Christians through out the land, and he was hunting them down like dogs. ABBA(GOD) can transform an atheist , Muslim, or deist heart, life because it is about ABBA(GOD) timing not ours. When a Christians states who cannot be saved, then he or she is speaking for GOD when GOD did not give them the authority to speak on GOD's behalf. Have these Christians forgotten, not to long ago ABBA(GOD) came into their lives in the midst of darkness and their sinful lives. Sometimes, I truly wonder have these Christians lost their faith in ABBA(GOD), doubting, unbelief, fearful, dead in oneself, and lack of prayer life with ABBA.
Acts 9 Holman Christian Standard Bible (HCSB)
The Damascus Road
9 Meanwhile, Saul was still breathing threats and murder against the disciples of the Lord. He went to the high priest 2 and requested letters from him to the synagogues in Damascus, so that if he found any men or women who belonged to the Way, he might bring them as prisoners to Jerusalem. 3 As he traveled and was nearing Damascus, a light from heaven suddenly flashed around him.4 Falling to the ground, he heard a voice saying to him, “Saul, Saul, why are you persecuting Me?”
5 “Who are You, Lord?” he said.
“I am Jesus, the One you are persecuting,” He replied. 6 “But get up and go into the city, and you will be told what you must do.”
7 The men who were traveling with him stood speechless, hearing the sound but seeing no one. 8 Then Saul got up from the ground, and though his eyes were open, he could see nothing. So they took him by the hand and led him into Damascus. 9 He was unable to see for three days and did not eat or drink.
To many Christians are interfering with ABBA's(God) power, mission, purpose and authority to save unbelievers. They are being a stumbling block to others who desire to know ABBA(GOD) for themselves in spiritual truth. Those who are standing that atheists cannot be saved, then they need to read the testimony of Paul. Paul was a murder who was killing Christians so ABBA(GOD) can change an atheist who has not murdered Christians. ABBA can transform the atheist into a vessel for Kingdom of ABBA(GOD) to preach the Gospel to the lost.