And be not infirm, and be not grieving, and you shall have the upper hand if you are believers.

The holders back from among the believers, not having any injury, and those who strive hard in Allah's way with their property and their persons are not equal; Allah has made the strivers with their property and their persons to excel the holders back a (high) degree, and to each (class) Allah has promised good; and Allah shall grant to the strivers above the holders back a mighty reward: / (High) degrees from Him and protection and mercy, and Allah is Forgiving, Merciful.

Just because guys have been here before, they are not going to have the upper hand,

So the intercession of intercessors shall not avail them.

Toil shall not afflict them in it, nor shall they be ever ejected from it.

It shall not be abated from them and they shall therein be despairing.