Overall meaning :
Believers, when you are told to make room for others to sit in your gatherings, then do so: Allah will make room for you in His grace both in this life and in the next. If you are told to rise up and give up your seats for whatever good reason, then do so: Allah will raise the true believers among you and those endowed with religious knowledge which they translate into practice to superior degrees of honour. Allah is fully aware of all that your do.
Believers, when you intend to speak to Allah’s Messenger in private, give something in charity to the needy before you engage in such private conversation. Doing so is better for you and purer. If you are unable to so, never mind; for Allah is All-Forgiving, All-Merciful.
Do you fear poverty if you give something in charity to the needy before conferring privately with the Messenger? Since you are unable to do so, and Allah graciously waives such requirement in the future, establish the prayer, pay zakat and show obedience to Allah and His Messenger. Allah is well aware of all your actions, and He will repay you according to them.