It is only by God’s mercy that we can come before Him. The clean cannot mix with the unclean, the perfect cannot tolerate the imperfect. So we are not able, outside of God’s forgiveness and mercy, to worship Him. Because He is high and lifted up we come to Him in fear (reverence). Respect is a healthy emotion. It keeps us humble and behaving correctly. David said “as for me”. He knows that God has given him favor and chooses to make worship a part of his life. He could not always be at the temple but his heart and mind were there in worship. Where do you worship God?