Would you agree that in Real Salvation there is no backsliding?
No.
Isa_57:17 For the iniquity of his covetousness I was angry and struck him; I hid and was angry, And he went on backsliding in the way of his heart.
Jer_3:6 The LORD said also to me in the days of Josiah the king: "Have you seen what backsliding Israel has done? She has gone up on every high mountain and under every green tree, and there played the harlot.
Jer_3:8 Then I saw that for all the causes for which backsliding Israel had committed adultery, I had put her away and given her a certificate of divorce; yet her treacherous sister Judah did not fear, but went and played the harlot also.
Jer_3:11 Then the LORD said to me, "Backsliding Israel has shown herself more righteous than treacherous Judah.
Jer_3:12 Go and proclaim these words toward the north, and say: 'Return, backsliding Israel,' says the LORD; 'I will not cause My anger to fall on you. For I am merciful,' says the LORD; 'I will not remain angry forever.
Jer_3:14 "Return, O backsliding children," says the LORD; "for I am married to you. I will take you, one from a city and two from a family, and I will bring you to Zion.
Jer_3:22 "Return, you backsliding children, And I will heal your backslidings." "Indeed we do come to You, For You are the LORD our God.
Jer_8:5 Why has this people slidden back, Jerusalem, in a perpetual backsliding? They hold fast to deceit, They refuse to return.
Jer_31:22 How long will you gad about, O you backsliding daughter? For the LORD has created a new thing in the earth—A woman shall encompass a man."
Jer_49:4 Why do you boast in the valleys, Your flowing valley, O backsliding daughter? Who trusted in her treasures, saying, 'Who will come against me?'
Hos_11:7 My people are bent on backsliding from Me. Though they call to the Most High, None at all exalt Him.
Hos_14:4 "I will heal their backsliding, I will love them freely, For My anger has turned away from him.