Psalm "Whom have I in heaven but You? And earth has nothing I desire besides you. My flesh and my heart may fail, but GOD is the strength of my heart and my portion forever." My favorite verse of all time.
Bless the LORD, O my soul, and forget not all his benefits.–Psalm 103 : 2 (Webster)
John I will come to you, I will not leave you comfortless. Jesus is talking about the Holy Spirit here that God will send, as the presence of the Living Jesus Christ to be with us, to comfort us, and to be our Advocate.
"God is greater than our worried hearts and knows more about us than we do ourselves." 1 John God is more compassionate and understanding toward us than we often are toward ourselves. Our conscience gets in our way, but God is superior to our heart.