What does Genesis 18:5 mean?

'I’ll get you something to eat so you can refresh yourselves. After that, you can go on your way. Since you’ve come this far to see me, let me do this for you.' They said, 'Alright, go ahead.' Genesis 18:5 - Modern Text Bible

(Abraham insists on feeding them, not just out of duty but because he truly wants to help. The visitors agree to stay.)