I'm holding onto Him who won't let go of me!
He most certainly was there for Peter when he had become doubtful and afraid, most assuredly will he be there for anyone who has faith, in the Lord Jesus and continues to follow him. That doesn’t mean people can not get lost or forgetful, and start drowning again due the pressures of life. (Remember parable of the heart soils) always encourage and uplift others in Christ friend.
“My sheep hear My voice, and I know them, and they follow Me. And I give them eternal life, and they shall never perish; neither shall anyone snatch them out of My hand.”
John 10:27-28 NKJV