“Blessed are those who hunger and thirst for righteousness ..." (Matthew 5:6)

"Blessed are those who hunger and thirst for righteousness, for they will be filled." (Matthew 5:6)

What does Jesus mean by 'righteousness'?

The word "righteousness" here is being translated from the Greek word δικαιοσύνη (dikaiosynē) which means, according to Thayer's lexicon, "in a broad sense: state of him who is as he ought to be, righteousness, the condition acceptable to God."

"The condition acceptable to God" means being pleasing to God. Why would being pleasing to God cause one to "be filled?"

The word "be filled" is being translated from the Greek word χορτάζω (chortazō) which means "to fill or satisfy" according to the lexicon. Each of us is looking for fulfillment and satisfaction. We seek fulfillment as we seek sexual pleasure, fame, wealth, family, relationships with others, the approval of others and so on.

In fact, each of us is seeking fulfillment. But we are seeking fulfillment in the wrong place.

What does he mean by 'hunger and thirst'?

Jesus is not referring to the physical body being hungry or thirsty. He is speaking of spiritual hunger and thirst. Hunger and thirst by the soul.

This might be compared to a driver who is hungry taking his car to the gas station and filling his car up with gas and thinking that when the car is full of gas he will no longer feel hungry.

Why isn't the driver full when the gas tank is full?

Because the driver is not the car.

In the same way, we are not these physical bodies. These physical bodies are like vehicles, and we are the driver of this vehicle, the physical body.

This is proven by hundreds of thousands of clinical death cases where a person rises above their body and looks at it from above. In clinical death, the person separates from the physical body because the person is not the physical body.

We are spiritual in nature, not physical. Our bodies are temporary - they will each die in a few decades. But we - the spirit-person within - will live on after the body dies.

Where does the spirit-person within come from? The spiritual dimension.

For this reason, the physical things of this world do not satisfy us. Just as Jesus is teaching, we need spiritual "food" to fulfill us.

What will 'fill' us?

It is a loving relationship with the Supreme Being.

No matter our predicament in life, each of us is seeking love. We seek love by trying to impress others. We seek love by dating. We seek love as we marry. We seek love by having a family. We seek love by wanting our kids or our spouse or our family to care about us. We seek love by seeking the approval of others.

But the "love" of this physical world is only temporary. It comes and goes. It is conditional: contingent upon what we can give the other person. When they no longer need us, their so-called love typically goes away. Or their body dies and they leave us.

But the love of the Supreme Being is unconditional. He loves us whether we love Him or not. He loves us and cares for us whether we care about Him or not.

A loving relationship between ourselves and the Supreme Being is the love we are always seeking. It is the perfect, unconditional love we are always pining for.

And pleasing the one we love is important to any loving relationship: This is the stuff of the loving relationship that exists between each of us and the Supreme Being.

Just consider what we do when we want to please the one we love. We bring them a flower. We praise them. Certainly, our beloved is pleased with such expression of our love.

When this expression of love is pointed towards the Supreme Being - it fulfills us. It fulfills the spirit-person within the body. This is spiritual life, and this is the only thing that can completely fulfill our need for love: expressing our love for the Supreme Being. 

This is why Jesus stated, "for they will be filled."

This is also confirmed by Jesus' most important instruction:
“‘Love the Lord your God with all your heart and with all your soul and with all your mind.' This is the first and greatest commandment." (Matt. 22:37-38)