Keep living with God. In His Holy Spirit and His Word, in Jesus Christ and in the Father. God will lead him into all truths, in all things that will happen, God will save. God is close to the brokenhearted. He is mighty to save for all those that count on Him. Focus on Him, His love, and all the storms in life will not overcome you. Have faith and do not doubt when asking for God's help, there is always hope and love. Love is the greatest. So keep loving them, despite their spiritual situation. God bless you and your friend.
16 Then the eleven disciples went away into Galilee, into a mountain where Jesus had appointed them.
17 And when they saw him, they worshipped him: but some doubted.
18 And Jesus came and spake unto them, saying, All power is given unto me in heaven and in earth.
Matthew 28
King James Version
https://www.biblegateway.com/passage...28&version=KJV