let us see your first scripture in context shall we simon...
1Ti 2:1 I desire therefore, first of all, that supplications, prayers, intercessions and thanksgivings be made for all men:
1Ti 2:2 For kings and for all that are in high station: that we may lead a quiet and a peaceable life in all piety and chastity.
1Ti 2:3 For this is good and acceptable in the sight of God our Saviour,
1Ti 2:4 Who will have all men to be saved and to come to the knowledge of the truth.
1Ti 2:5 For there is one God: and one mediator of God and men, the man Christ Jesus:
1Ti 2:6 Who gave himself a redemption for all, a testimony in due times.
1Ti 2:7 Whereunto I am appointed a preacher and an apostle (I say the truth, I lie not), a doctor of the Gentiles in faith and truth.
1Ti 2:8 I will therefore that men pray in every place, lifting up pure hands, without anger and contention.
It seems it say that intercession is acceptable to the Lord and Saviour. A perfect example of this, is the fact that the apostle here is praying, therefore he is using prayer as a means of intercession on the behalf of all men. That makes him an intrcessor between the people he is praying for and the Lord.
There goes one of your scriptures out the window because it was not used in proper context.
Joh 14:13 Because I go to the Father: and whatsoever you shall ask the Father in my name, that will I do: that the Father may be glorified in the Son.
Joh 14:14 If you shall ask me any thing in my name, that I will do.
Yes this is true because there is OLY ONE MEDIATOR BETWEEN GOD THE FATHER, AND MAN...... THAT IS GOD THE SON. So therefore even those in heaven must offer their prayers to Jesus to offere them to God the Father.