Charles Spurgeon Commentary John 8:35-36

"And the bondservant abideth not in the house for ever: the son abideth for ever. If therefore the Son shall make you free, ye shall be free indeed." — John 8:35-36 (ASV)

And the servant abideth not in the house for ever: but the Son abideth ever. If the Son therefore shall make you free, ye shall be free indeed.

If he sets you free from sin, you will never go back to its slavery again. There is no emancipation like that which Jesus brings, for it is eternal; when he snaps the fetter, he sets the believer free forever.