You do not choose to be a friend of God. That is by invitation only. Only two people in the Old Testament were specifically described as “friends of God.” Abraham walked with the Lord so closely that God referred to him as His friend (Isa. 41:8). Moses spoke to God face to face as a man speaks with his friend (Exod. 33:11).
By His very nature God is a friend to us. He loves us with a perfect love and reaches out to us with salvation when we can offer Him nothing in return. It is quite another thing when someone has a heart so devoted to Him that God initiates a special friendship. David’s heart was totally devoted to God (1 Kings 11:4). Although David was not sinless, he loved God. David hated sin (Ps. 103:3); he loved to worship God (Ps. 122:1); he took genuine delight in God’s presence (2 Sam. 6:14); he loved to speak about God (Ps. 34:1); he was keenly aware of his transgressions (Ps. 51:3-4); and he delighted in offering gifts of song, thanksgiving, and praise, asking for nothing in return (Ps. 100). So closely did David walk with God that his words were on Jesus’ mind as He hung upon the cross (Matt. 27:46).
Jesus called His disciples friends. He said He would disclose to them things that the Father had shared with Him, because they were His friends. There developed such an intimate friendship between them that He would share what was on His heart with His friends.
If you cannot describe yourself as a friend of God, commit yourself to seek after God with all your heart.