That is quite a fellowship. It is quite a club, it is quite a membership. Nothing equals it.
So the two scriptures from Paul confirm that both the Father and the Son are fully and irrevocably committed to bringing every member of His church to Christ's return. Now, does God guarantee His Kingdom only to those who make minor mistakes, or has God committed Himself to help us through weak times and hard times, even when we have sinned seriously and the door to God's grace seems forever closed?