LeBuick said:
If only the saved can perish the Jn 3:16 is wrong. It says believing will keep you from perishing (shall not perish).
No, being saved doesn't require you continue to "walk" with him, but this is what Jesus said;
Lk 9:62 And Jesus said unto him, No man, having put his hand to the plough, and looking back, is fit for the kingdom of God.
I highlighted the important words. It's talking about the Kingdom, not spiritual salvation. That's what John 3:16 is talking about as well. That's why "believe" is a present active participle (walking with the Lord) and "not perish" and "have" are subjunctive. If you continue in your walk, you might not perish (lose your life in the age to come; the Kingdom) but may have "aionian" life.
Perishing has to do with losing one's life; one's soul; not his spiritual salvation. And, an unsaved person is already dead in trespasses and sin, and therefore cannot perish.
Salvation is by "believe" in the aorist tense. It's an event. It cannot be stopped, because if you believe and then stop believing, you have believed in the aorist.
However, you can stop believing in the present tense. You can stop walking with the Lord.
But, we are told in the Scriptures that if we believe in the aorist, we will be saved, with no doubts, no if's, no ands, no buts.
"Believe", when used as a present, active, participle, is synonymous with "faith". What happens when we stop being faithful; when we stop walking with the Lord? Does he stop being faithful and let us go to the lake of fire? No. He is always faithful. We will be saved. But, if we stop being faithful, we might lose our life in the age to come.
As saved people, we are accountable for our actions, but that accountability does not extend to losing our spiritual salvation, because that is based on the perfect, finished work of the Lord Jesus, not on our imperfect, human works. But, at the Judgment Seat of Christ, we will receive for our works in the flesh, and that could include losing out completely on the Kingdom and being chastened for 1000 years. That's perishing; "apollumi".