How to be in union with Jesus Christ?:
John 15:4 Remain in union with me, and I will remain in union with you. Just as the branch cannot bear fruit by itself unless it remains in the vine, neither can you unless you remain in union with me.
5 I am the vine; you are the branches. Whoever remains in union with me and I in union with him, this one bears much fruit; for apart from me you can do nothing at all.
Philippians 1:11 and that you may be filled with righteous fruit, which is through Jesus Christ, to God’s glory and praise.
John 14:13 Also, whatever you ask in my name, I will do this, so that the Father may be glorified in connection with the Son.
14 If you ask anything in my name, I will do it.