Then, indeed your Lord, to those who emigrated after they had been compelled [to say words of disbelief] and thereafter fought [for the cause of Allāh] and were patient - indeed, your Lord, after that, is Forgiving and Merciful
Then your Lord - O Messenger - is Forgiving and Merciful towards those oppressed believers who migrated from Makkah to Madina after being persecuted by the idolaters to the extent that they uttered words of disbelief whilst their hearts were at peace with faith. Then they strove in Allah’s path to make the Word of Allah supreme, and the word of the disbelievers lowest and they were patient over its difficulties. Your Lord, after the persecution that they underwent, is Forgiving and Merciful towards them because they only uttered words of disbelief under duress.