Assurance

2 Corinthians 5:5-6 KJV

Now he that hath wrought us for the selfsame thing is God, who also hath given unto us the earnest of the Spirit.

Therefore we are always confident, knowing that, whilst we are at home in the body, we are absent from the Lord:

Because of the earnest, because of the indwelling Holy Spirit, Paul said that he was confident he would enjoy that thing he desired; to be clothed upon with heaven.

Here is another passage that teaches us the assurance that comes from the Holy Spirit dwelling in the Christian. Without this earnest we would have no reason for such confidence. But having that earnest we may be assured even while being absent from the Lord that we will have our desire and one day be clothed upon with heavenly glory.