I find striking similarities between John 15:1-11 and Revelation 3:14-22:
John 15:1-11 (ESV)
“I am the true vine, and my Father is the vinedresser. 2 Every branch in me that does not bear fruit he takes away, and every branch that does bear fruit he prunes, that it may bear more fruit. 3 Already you are clean because of the word that I have spoken to you. 4 Abide in me, and I in you. As the branch cannot bear fruit by itself, unless it abides in the vine, neither can you, unless you abide in me. 5 I am the vine; you are the branches. Whoever abides in me and I in him, he it is that bears much fruit, for apart from me you can do nothing. 6 If anyone does not abide in me he is thrown away like a branch and withers; and the branches are gathered, thrown into the fire, and burned. 7 If you abide in me, and my words abide in you, ask whatever you wish, and it will be done for you. 8 By this my Father is glorified, that you bear much fruit and so prove to be my disciples. 9 As the Father has loved me, so have I loved you. Abide in my love. 10 If you keep my commandments, you will abide in my love, just as I have kept my Father's commandments and abide in his love. 11 These things I have spoken to you, that my joy may be in you, and that your joy may be full.
Revelation 3:14-22 (ESV)
14 “And to the angel of the church in Laodicea write: ‘The words of the Amen, the faithful and true witness, the beginning of God's creation.
15 “‘I know your works: you are neither cold nor hot. Would that you were either cold or hot! 16 So, because you are lukewarm, and neither hot nor cold, I will spit you out of my mouth. 17 For you say, I am rich, I have prospered, and I need nothing, not realizing that you are wretched, pitiable, poor, blind, and naked. 18 I counsel you to buy from me gold refined by fire, so that you may be rich, and white garments so that you may clothe yourself and the shame of your nakedness may not be seen, and salve to anoint your eyes, so that you may see. 19 Those whom I love, I reprove and discipline, so be zealous and repent. 20 Behold, I stand at the door and knock. If anyone hears my voice and opens the door, I will come in to him and eat with him, and he with me. 21 The one who conquers, I will grant him to sit with me on my throne, as I also conquered and sat down with my Father on his throne. 22 He who has an ear, let him hear what the Spirit says to the churches.’”
Are the branches that are thrown away (from John 15:1-11) and the lukewarm believers that Jesus will spit out of his mouth (from Revelation 3:14-22) the same group of people?
If so, does this prove that salvation can be lost?