It says that "If salt shall lose it saltiness how shall its saltiness be restored? It is no longer good for anything (not just not good for some things, but ANYTHING), but to be thrown out (used with language for hell) and trampled under people's feet (obviously language of judgment).
This seems to be a verse that could be used in support of conditional salvation and against once saved, always saved. Agree, disagree?
Yes, this can be used to support that someone can lose one's salvation.
But - - -
What makes someone truly salty? Does God give a child of His what is corruptible and can be lost??
"rather let it be the hidden person of the heart, with the incorruptible beauty of a gentle and quiet spirit, which is very precious in the sight of God." (1 Peter 3:4)
God's love in us (Romans 5:5, 1 John 4:17) is gentle and quiet in His almighty power to keep us.
So, then, if something can be corrupted and thrown out, what is it? If God changes a person, the person is changed into what is incorruptible in our character. You can't lose what God has done >
"He who has begun a good work in you will complete it until the day of Jesus Christ." (in Philippians 1:6)
"Love has been perfected among us in this: that we may have boldness in the day of judgment; because as He is, so are we in this world." (1 John 4:17)
If love has been perfected in us so that we are "as He is" > how can Jesus lose Himself??
What is "incorruptible" and can spread to change another person?
"rather let it be the hidden person of the heart, with the incorruptible beauty of a gentle and quiet spirit, which is very precious in the sight of God." (1 Peter 3:4)
If God saves a person and changes him or her into character having what is incorruptible, how can this be lost?
"If anyone desires to come after Me, let him deny himself, and take up his cross daily, and follow Me." (Luke 9:23)
If you have denied yourself which includes your own corruptible free will, and if you have trusted Jesus to save you and make you a new person in His freedom . . . I don't think Jesus will lose someone who has been given to Him and is changing more and more into how He is.
"But evil men and impostors will grow worse and worse, deceiving and being deceived." (2 Timothy 3:13)
"But he who is joined to the Lord is one spirit with Him." (1 Corinthians 6:17)