The Evidence of the "In me" is the "I in you"

John 15:1 “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.

What does it mean to be "In Him"

Read John 14:21 and you will see the following:

The one who is in Him-

• Has His commandments
• Keeps His commandments
• Loves Him
• Is loved by the Father
• Is loved by Christ
• He has disclosed Himself to him