I did. Romans 10 opens with:
"Brothers
and sisters, my heart’s desire and my prayer to God for them is
for their salvation. 2 For I testify about them that they have a zeal for God,
but not in accordance with knowledge. 3 For
not knowing about God’s righteousness and seeking to establish their own,
they did not subject themselves to the righteousness of God."
"14 How then are
they to call on Him in whom they have not believed? How are
they to believe in Him whom they have not heard? And how are
they to hear without a preacher? 15 But how are
they to preach unless they are sent? Just as it is written: “How beautiful are the feet of those who [
j]bring good news of good things!”"
"16 However, they did not all heed the [
k]good news; for Isaiah says, “Lord, who has believed our report?” 17 So faith
comes from hearing, and hearing by the word [
l]of Christ."
What is the good news they rejected? An order to be missionaries? No, the gospel. Again, this passage deals with Paul speaking to the salvation of the Jews. First verse.
"18 But I say, surely they have never heard, have they? On the contrary:
“Their voice has gone out into all the earth,
And their words to the ends of the [
m]world.”
19 But I say, surely Israel did not know, did they? First Moses says,
“I will make you jealous with
those who are not a nation,
With a foolish nation I will anger you.”
20 And Isaiah is very bold and says,
“I was found by those who did not seek Me,
I revealed Myself to those who did not ask for Me.”
21 But as for Israel, He says, “I have spread out My hands all day long to a disobedient and obstinate people.”"
Notice how verse 19 is in line with Romans 11. By going to the Gentiles, He sought to stir up jealousy in Israel.
Verse 21 doesn't mean anything without the rest of the chapter. It has nothing to do with being missionaries, and everything to do with their rejection of the Messiah. The refuse to acknowledge God and His Son.