What is the point in claiming/bragging that you are worshipping Jehovah if he and Jesus view it in as in vain?
6 He said to them: “Isaiah aptly prophesied about you hypocrites, as it is written, ‘This people honor me with their lips, but their hearts are far removed from me.
+ 7 It is in vain that they keep worshipping me, for they teach commands of men as doctrines.’
+ 8 You let go of the commandment of God and cling to the tradition of men.”
+
22 Many will say to me in that day: ‘Lord, Lord,
+ did we not prophesy in your name, and expel demons in your name, and perform many powerful works
* in your name?’
+ 23 And then I will declare to them: ‘I never knew
* you! Get away from me, you workers of lawlessness!’
+
As far as being recognized as a Christian, a Christian is one who follows/believes in Christ Jesus, not Jehovah.
32 “Everyone, then, who acknowledges me before men,
+ I will also acknowledge him before my Father who is in the heavens.
+ 33 But whoever disowns me before men, I will also disown him before my Father who is in the heavens.
+
26 After he found him, he brought him to Antioch. So for a whole year they assembled with them in the congregation and taught quite a crowd, and it was first in Antioch that the disciples were by divine providence called Christians.
+
18 Jesus approached and spoke to them, saying: “All authority has been given me in heaven and on the earth.
+ 19 Go, therefore, and make disciples of people of all the nations,
+ baptizing them
+ in the name of
the Father and of the Son and of the holy spirit, 20 teaching them to observe all the things I have commanded you.
+ And look! I am with you all the days until the conclusion of the system of things.”
*+
trinity - the Christian Godhead as one God in three persons: Father, Son, and Holy Spirit.
5 For there is one God,
+ and one mediator
+ between God and men,
+ a man, Christ Jesus,
+ 6 who gave himself a corresponding ransom for all
*+—this is what is to be witnessed to in its own due time.
23 For I received from the Lord what I also handed on to you, that the Lord Jesus on the night+ on which he was going to be betrayed took a loaf, 24 and after giving thanks, he broke it and said: “This means my body,+ which is in your behalf. Keep doing this in remembrance of me.”+ 25 He did the same with the cup+ also, after they had the evening meal, saying: “This cup means the new covenant+ by virtue of my blood.+ Keep doing this, whenever you drink it, in remembrance of me.”+ 26 For whenever you eat this loaf and drink this cup, you keep proclaiming the death of the Lord,+ until he comes.