Light shines in the darkness for the upright, the psalmist sings. Isaiah declares that when we loose the bonds of injustice and share our bread with the hungry, the light breaks forth like the dawn. In another passage from the Sermon on the Mount, Jesus, the light of the world, calls his followers to let the light of their good works shine before others. Through baptism we are sent into the world to shine with the light of Christ.
Matthew 5:13-20
14“You are the light of the world. A city built on a hill cannot be hid. 15No one after lighting a lamp puts it under the bushel basket, but on the lampstand, and it gives light to all in the house. 16In the same way, let your light shine before others, so that they may see your good works and give glory to your Father in heaven.
17“Do not think that I have come to abolish the law or the prophets; I have come not to abolish but to fulfill. 18For truly I tell you, until heaven and earth pass away, not one letter, not one stroke of a letter, will pass from the law until all is accomplished. 19Therefore, whoever breaks one of the least of these commandments, and teaches others to do the same, will be called least in the kingdom of heaven; but whoever does them and teaches them will be called great in the kingdom of heaven. 20For I tell you, unless your righteousness exceeds that of the scribes and Pharisees, you will never enter the kingdom of heaven.”
Isaiah 58:1-9a [9b-12]
Lift up your voice like a trumpet!
Announce to my people their rebellion,
to the house of Jacob their sins.
2Yet day after day they seek me
and delight to know my ways,
as if they were a nation that practiced righteousness
and did not forsake the ordinance of their God;
they ask of me righteous judgments,
they delight to draw near to God.
3“Why do we fast, but you do not see?
Why humble ourselves, but you do not notice?”
Look, you serve your own interest on your fast day,
and oppress all your workers.
4Look, you fast only to quarrel and to fight
and to strike with a wicked fist.
Such fasting as you do today
will not make your voice heard on high.
5Is such the fast that I choose,
a day to humble oneself?
Is it to bow down the head like a bulrush,
and to lie in sackcloth and ashes?
Will you call this a fast,
a day acceptable to the Lord?6Is not this the fast that I choose:
to loose the bonds of injustice,
to undo the thongs of the yoke,
to let the oppressed go free,
and to break every yoke?
7Is it not to share your bread with the hungry,
and bring the homeless poor into your house;
when you see the naked, to cover them,
and not to hide yourself from your own kin?
8Then your light shall break forth like the dawn,
and your healing shall spring up quickly;
your vindicator shall go before you,
the glory of the Lord shall be your rear guard.
9aThen you shall call, and the Lord will answer;
you shall cry for help, and he will say, Here I am.
9bIf you remove the yoke from among you,
the pointing of the finger, the speaking of evil,
10if you offer your food to the hungry
and satisfy the needs of the afflicted,
then your light shall rise in the darkness
and your gloom be like the noonday.
11The Lord will guide you continually,
and satisfy your needs in parched places,
and make your bones strong;
and you shall be like a watered garden,
like a spring of water,
whose waters never fail.
12Your ancient ruins shall be rebuilt;
you shall raise up the foundations of many generations;
you shall be called the repairer of the breach,
the restorer of streets to live in.
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