Because the word friendship is very important amongst your friends, whether in large or small groups, it must contain the word friendship, if lacking the word friendship will be divisive. There is no unity.
Friendship is very important because the word among friends, whether small or great, whether it be a lack of friendship, if that's going to cause a rift was no unity.
Because friendship is very important among the friends, whether small or large, it must have a friendship if he that friendship will make effect. Split, no harmony.