Mealler

You shall readily mobilize, light or heavy, and strive with your money and your lives in the cause of GOD. This is better for you, if you only knew.

If there were a quick material gain, and a short journey, they would have followed you. But the striving is just too much for them. They will swear by GOD: "If we could, we would have mobilized with you." They thus hurt themselves, and GOD knows that they are liars.

GOD has pardoned you: why did you give them permission (to stay behind), before you could distinguish those who are truthful from the liars?

Those who truly believe in GOD and the Last Day do not ask your permission to evade the opportunity to strive with their money and their lives. GOD is fully aware of the righteous.

The only people who wish to be excused are those who do not really believe in GOD and the Last Day. Their hearts are full of doubt, and their doubts cause them to waver.