Someone did you a disservice by teaching you that Paul wrote Hebrews. He did not. Technically no one knows who the author may be, but it's not Paul's style. Paul doesn't write that way. Never did. My money is on Apollos as the author.
In addition, this is a quote from Jeremiah:
Behold, the days come, saith the LORD, that I will make a new covenant with the house of Israel, and with the house of Judah: Not according to the covenant that I made with their fathers in the day that I took them by the hand to bring them out of the land of Egypt; which my covenant they brake, although I was an husband unto them, saith the LORD: But this shall be the covenant that I will make with the house of Israel; After those days, saith the LORD, I will put my law in their inward parts, and write it in their hearts; and will be their God, and they shall be my people. And they shall teach no more every man his neighbour, and every man his brother, saying, Know the LORD: for they shall all know me, from the least of them unto the greatest of them, saith the LORD: for I will forgive their iniquity, and I will remember their sin no more.
(Jeremiah 31:31-34 KJV)
Of all the people here on this forum, I am the least that you would need to worry about this.
Ahem.... it isn't "free" if one needs to work for good grades to receive this "reward". The bicycle was earned by the works necessary to achieve the good grades. That's just common sense. Nothing is free if there are strings attached (conditions to be met). Obviously then, there is a confrontation with the teaching in this passage:
But, not as the offence so also is the free gift; for if by the offence of the one the many did die, much more did the grace of God, and the free gift in grace of the one man Jesus Christ, abound to the many; and not as through one who did sin is the free gift, for the judgment indeed is of one to condemnation, but the gift is of many offences to a declaration of 'Righteous,' for if by the offence of the one the death did reign through the one, much more those, who the abundance of the grace and of the free gift of the righteousness are receiving, in life shall reign through the one—Jesus Christ. So, then, as through one offence to all men it is to condemnation, so also through one declaration of 'Righteous' it is to all men to justification of life; for as through the disobedience of the one man, the many were constituted sinners: so also through the obedience of the one, shall the many be constituted righteous. And law came in, that the offence might abound, and where the sin did abound, the grace did overabound,
(Romans 5:15-20 YLT)
And anyone who is not fooling himself would readily admit that Paul and James had a major theological disagreement - unto war even.
Rhema