In some interpretations we see righteousness written as justice. Regardless, it is those that seek moral rightness or justice that are being called to. Here, Jesus is not just asking for something that we do, but for us to have the moral fiber to not just want what is just, but to hunger for it. He uses a very human experience, something we need to survive. He is calling for us to need that morality to be a part of our lives as much as need food or drink.
How can we make ourselves hunger and thirst for righteousness?
We hunger for righteousness by desiring the Living Bread, true righteousness above all else. We thirst for justice by desiring only the Living Water Christ can give us. When seek Christ above all else, wanting Him, needing Him like we need physical food and drink, we will find ourselves thirsting for a righteousness that only He can fill when we attend Mass and immerse ourselves in God's love and word. Just like the Disciples, who recognized early on that Christ was more than a prophet, He was the Messiah, we are also called to want Him so badly that would drop everything and follow Him. We are blessed when make Christ a true priority and need in our lives.
Reflect on Matthew 14:13-21 today and consider how Jesus fulfills His promise. To those who hungered and thirsted for Him, He gave them their fill. Do we truly hunger and thirst for Him as the multitudes did? How can we, today, hunger for Christ and allow Him to fill us up?