Some friends inspire me to holiness more than others.
It doesn't hurt when they follow Mark 5.19:
And he did not permit him but said to him, "Go home to your friends and tell them how much the Lord has done for you, and how he has had mercy on you."
It does hurt when they are far away.
Do not forsake your friend and your father’s friend,
and do not go to your brother’s house in the day of your calamity.
Better is a neighbor who is near
than a brother who is far away. (Proverbs 27.10)