Isaiah 58:9-14 / Luke 5:27-32
It is said that nothing is too difficult to achieve as long as we persevere and persist in it.
So whether it is some kind of physical training to excel in a sport, or practising on a skill, or trouble-shooting and finding a solution to a problem, what is needed is perseverance and persistence.
The way to go about it is certainly not impossible or rocket-science but what is needed will be conviction and commitment.
In the 1st reading, what the Lord is telling His people is certainly something that is not beyond their reach or impossible to achieve.
It is the very basics of being human - doing away with the yoke, the clenched fist, the wicked word, giving bread to the hungry, relief to the oppressed.
In return, what they will receive from the Lord is immeasurable - they will be like a watered garden, a spring of water, called "Breach-mender" and "Restorer of ruined houses".
In the gospel, Jesus called Levi to follow Him. It was not certainly not that impossible or too difficult to understand what Jesus meant by that.
But it would take a conviction and commitment on the part of Levi. And what he got in return was an unbounded joy that made him give a great reception in honour of Jesus.
In the season of Lent, we are called to practise the spiritual disciplines of prayer, fasting and almsgiving.
That is not too difficult or impossible. But we must have the conviction and commitment. And what we will receive from the Lord would be a joy that is so unbounded that like Levi we will also do all for the glory of God.