This verse speaks to the core theme of **At-Tawbah**.
Reflect on the meaning: "Had it been a near i.e., easy gain and a moderate trip, they i.e., the hypocrites would have followed you, but distant to them was the journey. And they will swear by Allāh, "If we were able, we would have gone forth with you," destroying themselves through false oaths, and Allāh knows that indeed they are liars.".