"...the Lord of the Worlds has chosen you for this religion, and has chosen you to be the leaders of the world. Likewise, He honored you and chose this religion for you:
ٱلۡيَوۡمَ أَكۡمَلۡتُ لَكُمۡ دِينَكُمۡ وَأَتۡمَمۡتُ عَلَيۡكُمۡ نِعۡمَتِى وَرَضِيتُ لَكُمُ ٱلۡإِسۡلَـٰمَ دِينً۬اۚ
"...This day, I have perfected your religion for you, completed My favor upon you, and have chosen for you Islam as your religion..."
Allah the Mighty and Majestic - chose you for this religion, and chose this religion for you to carry to humanity. And Allah Said that the reason you were chosen and honored is so that you would be witnesses upon the people on the Day of Resurrection. This Ummah is going to be a witness over all of humanity! Allah will ask it as He asked the Prophets: 'Did you relay My message? Did you spread My religion? Did you try to save humanity with this mercy that I granted you?'
نَزَلَ بِهِ ٱلرُّوحُ ٱلۡأَمِينُ
"Which the trustworthy Ruh (Jibril) has brought down"
...upon the trustworthy heart of Muhammad. And in more than one place in the Qur'an, this verse is repeated:
وَكَذَٲلِكَ جَعَلۡنَـٰكُمۡ أُمَّةً۬ وَسَطً۬ا لِّتَڪُونُواْ شُہَدَآءَ عَلَى ٱلنَّاسِ وَيَكُونَ ٱلرَّسُولُ عَلَيۡكُمۡ شَهِيدً۬اۗ
"Thus, We have made you a just nation, that you be witnesses over mankind, and the Messenger be a witness over you."
...a virtuous nation, a just nation.
So, the question on the Day of Resurrection will not simply be: 'Did you implement Islam?' Rather, it will be: 'Did you spread Islam on Earth? Did you save the Americans, Russians, British, and French?' Prepare an answer for this question that you will be asked in front of the Lord of the Worlds!
... هُوَ ٱجۡتَبَٮٰكُمۡ وَمَا جَعَلَ عَلَيۡكُمۡ فِى ٱلدِّينِ مِنۡ حَرَجٍ۬ۚ
"He has chosen you, and has not laid upon you in religion any hardship..."
There is nothing there that is heavy, and there is nothing there that is impossible, and there is nothing there that is difficult...
... مِّلَّةَ أَبِيكُمۡ إِبۡرَٲهِيمَۚ هُوَ سَمَّٮٰكُمُ ٱلۡمُسۡلِمِينَ..
"...is the religion of your father, Ibrahim. It is He Who has named you Muslims..."
You have been made to carry the name of Islam, and He made you carry this name in order that you be witnesses over the people, and so that the Messenger would be a witness over you...
...and it is a must that we understand our responsibility, our responsibility as Muslims. Our ascription to this religion is a great responsibility in front of the Lord of the Worlds - a responsibility in this world, and a responsibility in the next world. These human beings around us who rise above us, and might possess much more than we do - Allah has made us responsible for them. We are supposed to look after them. We are supposed to be their instructors. We are the ones who are obliged to relay the Message to them. These people will grab our throats on the Day of Resurrection, saying: 'O Lord! Take our right from these people!' So,the Muslim will say: 'O Lord! I do not even know these people, and they have no right over me!' So, one of them will say: 'Nay! You saw me in misguidance, and did not forbid me from it.'
So, before you are grabbed by your throat, take yourself to account before you are taken to account, and weigh your actions before they are weighed for you, and prepare for your Accounting with your Lord, and know that tomorrow, you will be between the Hands of Allah, standing, and being recompensed for your actions..."
['at-Tarbiyah al-Jihadiyyah wal-Bina''; 2/251-252]
(SHEIKH 'ABDULLAH YUSUF 'AZZAM (ASY-SYAHID, INSYAALLAH)