It's clearly talking about grace. There are those who will not do as much as others but all who labor will be allowed into the kingdom. Compare that parable to this one.
Luk 19:12 He said therefore, "A nobleman went into a far country to receive for himself a kingdom and then return.
Luk 19:13 Calling ten of his servants, he gave them ten minas, and said to them, 'Engage in business until I come.'
Luk 19:14 But his citizens hated him and sent a delegation after him, saying, 'We do not want this man to reign over us.'
Luk 19:15 When he returned, having received the kingdom, he ordered these servants to whom he had given the money to be called to him, that he might know what they had gained by doing business.
Luk 19:16 The first came before him, saying, 'Lord, your mina has made ten minas more.'
Luk 19:17 And he said to him, 'Well done, good servant! Because you have been faithful in a very little, you shall have authority over ten cities.'
Luk 19:18 And the second came, saying, 'Lord, your mina has made five minas.'
Luk 19:19 And he said to him, 'And you are to be over five cities.'
Luk 19:20 Then another came, saying, 'Lord, here is your mina, which I kept laid away in a handkerchief;
Luk 19:21 for I was afraid of you, because you are a severe man. You take what you did not deposit, and reap what you did not sow.'
Luk 19:22 He said to him, 'I will condemn you with your own words, you wicked servant! You knew that I was a severe man, taking what I did not deposit and reaping what I did not sow?
Luk 19:23 Why then did you not put my money in the bank, and at my coming I might have collected it with interest?'
Luk 19:24 And he said to those who stood by, 'Take the mina from him, and give it to the one who has the ten minas.'
Luk 19:25 And they said to him, 'Lord, he has ten minas!'
Luk 19:26 'I tell you that to everyone who has, more will be given, but from the one who has not, even what he has will be taken away.
Luk 19:27 But as for these enemies of mine, who did not want me to reign over them, bring them here and slaughter them before me.'"