you have no biblical basis for stating a person is not saved if they do not speak in tongues...your proof texts as per your op do not say what you are trying to make them say
what about all the other gifts? if we don't exhibit any, does that mean we are not saved?
if a person only prays in tongues and does not speak and interpret in church, then they are not building up the body, they are building up themself in the spirit which is fine, but where is their gift if they can only speak in tongues?
what you are saying can be understood as enthusiasm, but it is not universally applicable and does not line up with the Bible
what about all the other gifts? if we don't exhibit any, does that mean we are not saved?
if a person only prays in tongues and does not speak and interpret in church, then they are not building up the body, they are building up themself in the spirit which is fine, but where is their gift if they can only speak in tongues?
what you are saying can be understood as enthusiasm, but it is not universally applicable and does not line up with the Bible
Romans 8:9 But ye are not in the flesh, but in the Spirit, if so be that the Spirit of God dwell in you. Now if any man have not the Spirit of Christ, he is none of his.
Tongues is evidence that the Spirit of Christ is in someone. There is other evidence obviously but tongues is a great example because it is an outward sign, which we need.
The next part of the verse is, "Now if any man have not the Spirit of Christ, he is none of his." This is saying as clearly as possible that if we do not have the Spirit of God we do not belong to Him. At all. When we are born again we receive His Holy Spirit, and He alone distinguishes us from those who are born of the flesh. If we are born of the flesh we will perish with all other flesh. If we are born of the Spirit we will have our continuance to eternity with the Lord, provided we abide in Him, as He commands.
I keep saying that there are DIVERSE tongue gifts as follows:
1 Cor 12 7 But the manifestation of the Spirit is given to every man to profit withal.
8 For to one is given by the Spirit the word of wisdom; to another the word of knowledge by the same Spirit;
9 To another faith by the same Spirit; to another the gifts of healing by the same Spirit;
10 To another the working of miracles; to another prophecy; to another discerning of spirits; to another divers kinds of tongues; to another the interpretation of tongues:
11 But all these worketh that one and the selfsame Spirit, dividing to every man severally as he will.
So one other example of a gift of tongues is for intercession, which is done mainly privately, and through which the Lord will involve us in prayer on another's behalf. The main use for this gift is for the one who needs prayer which means its principal purpose is not to build us up (edify us) spiritually....however the effect upon us is the same....when we speak any tongue gift it edifies us spiritually. making us more solidly faithful...and it never puffs us up.
The bottom line is, as Jesus commands, ye must be born again. If you are not born again you do not have the Holy Spirit, the Spirit of Christ, therefore you are none of His.
BTW what SJ says does line up with the Bible pretty much totally in that it is obvious he speaks in tongues and has that experience and outward sign of the Holy Spirit to concur with the Word of God. His use of words to explain what he means is just a bit clumsy sometimes, but none of us is perfect.
One other evidence is the personal impact of the word of God, as opposed to a merely intellectual acceptance. If you have ever had that experience of God speaking to you personally in His word it is a personal encouragement in the Holy Spirit. People without the Holy Spirit have not entered into that communication with the Lord.
As far as other gifts, we all have to explore by faith what God is giving us. There is never any place to boast because if we have received it, it wasn't ours to boast about in the first place. But some things are harder to identify, like a word of wisdom. If you hear yourself saying something in a situation that completely cuts through all human logic in its solid observable practical truth, and you know it wasn't your own human logic, that is a word of wisdom.
I totally identify with SJ's position and I can reassure you it is not just enthusiasm. That the gifts of God are universally applicable is pretty much the sense of the above passage in the body of Christ, but not outside of it. If you are born again of the Spirit of God, have no fear, you have gifts, some of them you have not yet discovered!