"whose house we are if we hold fast the confidence and rejoicing of the hope firm to the end"!
Hebrews 3:1 Wherefore, holy brethren, partakers of the heavenly calling, consider the Apostle and High Priest of our profession, Christ Jesus;
This chapter is written to "holy brethren", to "partakers of a heavenly calling". By all accounts this chapter and the warnings are written to those who have been saved and washed by the blood of Jesus.
2 Who was faithful to him that appointed him, as also Moses was faithful in all his house. 3 For this man was counted worthy of more glory than Moses, inasmuch as he who hath builded the house hath more honour than the house.
Yes, Jesus is counted worthy of more honor than the law. If you want to say that Moses represents the law, fine, but Jesus represents the one who built that house.
4 For every house is builded by some man; but he that built all things is God.
The Jewish religion is a house, and Jesus is God who built all things including the Jewish religion.
5 And Moses verily was faithful in all his house, as a servant, for a testimony of those things which were to be spoken after; 6 But Christ as a son over his own house; whose house are we, if we hold fast the confidence and the rejoicing of the hope firm unto the end.
How does Calvinism explain this? He doesn't say "whose house we are if we prayed a prayer 20 years ago", no it says "whose house we are if we hold fast the confidence and rejoicing of the hope firm to the end"! The term house here is not an allegory of a building, it is a reference to the family of God. People love to say "once you are born you are born, that is forever". Fair enough, but this is a great house with a great calling to rule the world. Just because you were born does not mean you will inherit, it does not mean you will grow up to take your place in this great calling.
7 Wherefore (as the Holy Ghost saith, To day if ye will hear his voice, 8 Harden not your hearts, as in the provocation, in the day of temptation in the wilderness: 9 When your fathers tempted me, proved me, and saw my works forty years. 10 Wherefore I was grieved with that generation, and said, They do alway err in their heart; and they have not known my ways. 11 So I sware in my wrath, They shall not enter into my rest.)
They always debate about "once saved always saved". Fine, but that does not mean you will enter into the Lord's rest. According to this pattern in the wilderness which is a warning to us, many were strewn about in the wilderness and never entered the good land. Yes, they left Egypt, but no, they never entered the good land, they never entered the Lord's rest.
12 Take heed, brethren, lest there be in any of you an evil heart of unbelief, in departing from the living God.
OSAS will claim that if you depart from the living God then you were never saved. That is absurd, how can you depart from Him if you were never with Him?
13 But exhort one another daily, while it is called To day; lest any of you be hardened through the deceitfulness of sin.
This is what OSAS is all about, justifying a life of sin, that is the deceitfulness of sin, that is a hardened heart as a result of the deceitfulness of sin.
14 For we are made partakers of Christ, if we hold the beginning of our confidence stedfast unto the end;
Once again, our being partakers of Christ is conditional on our being stedfast to the end.
15 While it is said, To day if ye will hear his voice, harden not your hearts, as in the provocation. 16 For some, when they had heard, did provoke: howbeit not all that came out of Egypt by Moses. 17 But with whom was he grieved forty years? was it not with them that had sinned, whose carcases fell in the wilderness? 18 And to whom sware he that they should not enter into his rest, but to them that believed not? 19 So we see that they could not enter in because of unbelief.
This chapter is crystal clear. Everyone who came out of Egypt partook of the Passover lamb, they put the blood on the doorpost, they drank the water from the rock and they ate the manna. They all passed through the red sea and they all saw God's mighty works and deliverance first hand. Everyone of them had a testimony. By all accounts they were "saved". However, they lacked faith, why?
Faith comes by hearing and hearing by the word of God. You have to be in the word of God daily.