Two types of response to the gospel from the believers

To Obey the gospel of Jesus Christ is to obey the gospel of grace. However, if the gospel has no more commandments for us to obey, it is not the gospel of Jesus Christ. It is meaningless to obey when there is nothing for us to obey or no commandment to obey.
1 Peter 4:17 For the time is come that judgment must begin at the house of God: and if it first begin at us, what shall the end be of them that obey not the gospel of God?
2 Thessalonians 1:8 In flaming fire taking vengeance on them that know not God, and that obey not the gospel of our Lord Jesus Christ:
Mar 1:15 KJV  And saying, The time is fulfilled, and the kingdom of God is at hand: repent ye, and believe the gospel.
Mat 9:12-13 KJV  But when Jesus heard that, he said unto them, They that be whole need not a physician, but they that are sick.  (13)  But go ye and learn what that meaneth, I will have mercy, and not sacrifice: for I am not come to call the righteous, but sinners to repentance.
To repent is not to believe. The righteous people or the Pharisees will just believe; but sinners repent.

Hence, the call of the Lord is the command of the Lord. And the command of the Lord is something we must do and obey. Hence, to obey the gospel of grace means to obey the command or the call of the Lord to repent while there is still grace. Contrary to what hyper grace said, it is not to obey 'grace' to obey no more commandments and do nothing.

However, there are two types of responses to the Lord's call:
1. Those who hear, believe, and do not bear fruit (do not obey the gospel of Jesus Christ and do not repent), and
2. Those who hear, believe, and bear fruit (obey the gospel of Jesus Christ and repent)

Luk 3:8 KJV  Bring forth therefore fruits worthy of repentance, and begin not to say within yourselves, We have Abraham to our father: for I say unto you, That God is able of these stones to raise up children unto Abraham.
Luk 8:13-15 KJV  They on the rock are they, which, when they hear, receive the word with joy; and these have no root, which for a while believe, and in time of temptation fall away.  (14)  And that which fell among thorns are they, which, when they have heard, go forth, and are choked with cares and riches and pleasures of this life, and bring no fruit to perfection.  (15)  But that on the good ground are they, which in an honest and good heart, having heard the word, keep it, and bring forth fruit with patience.
Luk 13:5-9 KJV  I tell you, Nay: but, except ye repent, ye shall all likewise perish.  (6)  He spake also this parable; A certain man had a fig tree planted in his vineyard; and he came and sought fruit thereon, and found none.  (7)  Then said he unto the dresser of his vineyard, Behold, these three years I come seeking fruit on this fig tree, and find none: cut it down; why cumbereth it the ground?  (8)  And he answering said unto him, Lord, let it alone this year also, till I shall dig about it, and dung it:  (9)  And if it bear fruit, well: and if not, then after that thou shalt cut it down.

::