Strengthened by grace

This is really rich:

Jesus Christ is the same yesterday and today and forever. Do not be led away by diverse and strange teachings, for it is good for the heart to be strengthened by grace, not by foods, which have not benefited those devoted to them. (Hebrews 13:8-9; ESV)

compare this to:

Jesus answered her, "If you knew the gift of God and who it is that asks you for a drink, you would have asked him and he would have given you living water." "Sir," the woman said, "you have nothing to draw with and the well is deep. Where can you get this living water? Are you greater than our father Jacob, who gave us the well and drank from it himself, as did also his sons and his flocks and herds?" Jesus answered, "Everyone who drinks this water will be thirsty again, but whoever drinks the water I give him will never thirst. Indeed, the water I give him will become in him a spring of water welling up to eternal life." (John 4:10-11;NIV)

and:

For I received from the Lord what I also passed on to you: The Lord Jesus, on the night he was betrayed, took bread, and when he had given thanks, he broke it and said, "This is my body, which is for you; do this in remembrance of me." In the same way, after supper he took the cup, saying, "This cup is the new covenant in my blood; do this, whenever you drink it, in remembrance of me." For whenever you eat this bread and drink this cup, you proclaim the Lord's death until he comes. (1 Corinthians 11:27; NIV)

Just as Jesus is the affirmative answer to all of the prayers we can ever pray, Jesus has always been and always will be the daily bread that strengthens our hearts, as opposed to all the diverse and strange spiritual junk-food that ends up giving us bad hearts. Create in me a clean heart, oh God!