Here is opportunity for a half an hour well spent.
“My sheep hear my voice, and I know them, and they follow me: And I give unto them eternal life; and they shall never perish, neither shall any [man] pluck them out of my hand. My Father, which gave [them] me, is greater than all; and no [man] is able to pluck [them] out of my Father’s hand.” (continued here)
Are you concerned about losing your salvation in Christ? Do you understand what the scriptures say? If you are worried (even though the Bible says not to worry ), set aside a half hour and listen to Rob Barkman.