Friendship

It says in Proverbs, that a man that has friends must keep being friendly Prov 18:24. It is saying that if you have many friends you have to keep being involved with them and pleasing them, otherwise they may drop you! It is so easy to go along with the crowd and do and say things things to stay popular. Even in Christian circles. People, even the closest of buddies, can easily drop you for a variety of reasons.
It goes on to say that there is a Friend who sticks closer than a brother, who will stay with you through  joys and adversities. He literally sticks to you bonded and glued to your side! Paul says that everyone forsook him but the Lord was by his side 2 Tim 4:16,17. Every true child of God has to go through the fires of testing where sometimes friends, church, or family shun you. It is then you discover who truly is your Friend forever.
'What a friend we have in Jesus, all our sins and griefs to bear,
What a privelige to carry, everything to God in prayer.
Oh what peace we often forfeit, Oh what needless pains we bear.
All because we do not carry everything to God in prayer'.
If you are hurting because a friend has let you down, or spoken against you, forgive them and pray for them, and accept that God is drawing you closer to Jesus through this. He is your Faithful Friend, the Friend of sinners.