So, God brings light through his word. But he also brings light through his people. This is a big theme in the storyline of the Bible, and one which has big implications for church planting.
The story of redemption begins with God’s promise to Abraham. God promises Abraham a people who will enjoy God’s blessing and live in a place of blessing. But God also gives this people a missional mandate right from the beginning. He promises that through Abraham’s family “all peoples on earth will be blessed.” (Genesis 12:3)
How will God bless the nations through Abraham? In Genesis 18:17, God says that “all nations on earth will be blessed through [Abraham].” Then he says: “For I have chosen him, so that he will direct his children and his household after him to keep the way of the LORD by doing what is right and just, so that the LORD will bring about for Abraham what he has promised him.” (Genesis 18:18-19) Notice the word ‘for’. God will bring about what he has promised and what he has promised is blessing for all nations. And how will he bring about this promise? “I have chosen him, so that he will direct his children and his household after him to keep the way of the LORD by doing what is right and just.” It is as Abraham’s family lives the way of the LORD that God will bless all nations. People naturally think God’s rule is bad news. They think they are better off without God. So, our job as God’s people is to live in such a way that we show it is good to know God and good to live under his rule.
Sadly, more often than not, God’s people did not draw the nations to the ways of God. Instead they were drawn to the ways of the nations. The result was exile.
But the prophets look beyond judgment to a time when God’s people will again be a light to the nations.
“In the last days
the mountain of the LORD’s temple will be established
as the highest among the mountains;
it will be raised above the hills,
and all nations will stream to it.
Many peoples will come and say,
‘Come, let us go up to the mountain of the LORD,
to the house of the God of Jacob.
He will teach us his ways,
so that we may walk in his paths.’
The law will go out from Zion,
the word of the LORD from Jerusalem.
He will judge between the nations
and will settle disputes for many peoples.
They will beat their swords into ploughshares
and their spears into pruning hooks.
Nation will not take up sword against nation,
nor will they train for war any more.” (Isaiah 2:1-4)
Isaiah says one day Jerusalem will become the highest mountain. In other words, everyone will be able to see God’s people and as a result the nations will stream into Jerusalem. The nations will see that it is good to live under God’s reign. And what is Isaiah’s exhortation in the light of this vision? “Come, descendants of Jacob, let us walk in the light of the LORD.” (Isaiah 2:5) Live as a light to the nations.
Or consider Isaiah 60:1-3:
“Arise, shine, for your light has come,
and the glory of the LORD rises upon you.
See, darkness covers the earth
and thick darkness is over the peoples,
but the LORD rises upon you
and his glory appears over you.
Nations will come to your light,
and kings to the brightness of your dawn.” (Isaiah 60:1-3)
The LORD rises upon his people like the sun rising over the land and the darkness of night is dispelled. The darkness that signifies judgment is replaced by the glory of the LORD. The prophet tells us to do two things. He tells us to “see”. Look around you. See a world in darkness under judgment without the light of God’s word. But he also says, “Arise, shine”. What happens when God’s light shines on God’s people? God’s people shine. “Nations come to your light, and kings to the brightness of your dawn.”
Isaiah 60 continues: “Lift up your eyes and look about you: All assemble and come to you; your sons come from afar, and your daughters are carried on the arm.” (Isaiah 60:4) This is happening in the mission of the church. The nations are coming into the kingdom of God. “Lift up your eyes.” Marvel at what God is doing around the world through his people. “Then you will look and be radiant; your heart will throb and swell with joy.” (Isaiah 60:5)
The phrase “a light to the nations” is taken from the Servant Songs of Isaiah. Isaiah speaks of a Servant. Sometimes the Servant appears to be Israel. Sometimes the Servant appears to an individual who rescues Israel. The Servant is the One who embodies the calling of Israel – who is Israel as Israel was meant to be – and so rescues Israel. This is what God says of the Servant:
“I will keep you and will make you
to be a covenant for the people
and a light for the Gentiles,
to open eyes that are blind,
to free captives from prison
and to release from the dungeon those who sit in darkness.” (Isaiah 42:6-7)
“I will also make you a light for the Gentiles,
that you may bring my salvation to the ends of the earth.” (Isaiah 49:5-6)