The image shows a wooden fence, topped with a much nicer fence, topped with a strong sturdy cement wall with fine glass doors, and then covered with an equally strong roof and a cross. This signifies the church. The tree on the other hand is the life the structure seeks to preserve. It is the body of Christ.
11 “The multitude of your sacrifices—
what are they to me?” says the LORD.
“I have more than enough of burnt offerings,
of rams and the fat of fattened animals;
I have no pleasure
in the blood of bulls and lambs and goats.
12 When you come to appear before me,
who has asked this of you,
this trampling of my courts?
13 Stop bringing meaningless offerings!
Your incense is detestable to me.
New Moons, Sabbaths and convocations—
I cannot bear your worthless assemblies.
14 Your New Moon feasts and your appointed festivals
I hate with all my being.
They have become a burden to me;
I am weary of bearing them.
15 When you spread out your hands in prayer,
I hide my eyes from you;
even when you offer many prayers,
I am not listening.
Your hands are full of blood!
16 Wash and make yourselves clean.
Take your evil deeds out of my sight;
stop doing wrong.
17 Learn to do right; seek justice.
Defend the oppressed.[a]
Take up the cause of the fatherless;
plead the case of the widow.
I'm not encouraging you to do good works by helping the poor just to be saved. By all means, no. We have been saved through Jesus out of the great mercy He dispensed to a dust like you and me. And we need to share about Jesus to our humbled brethren who have experienced heavier effects of sin. The gospel of Jesus Christ can free them not only from spiritual bondage but also from the effects of sin in this world (i.e. poverty, slavery, injustice). God achieves this through the church.
May we become a blessing to the least of our brothers, for they too deserve to know Jesus Christ. Before we think of who to reach, let us remember why - the compassion of God for the lost. Our families, relatives, friends, and colleagues all need Jesus. But so do the poor, the hungry, the sick, and everyone outside or network of friends. We need to reach everyone, with no favoritism.
The content above, particularly the need of the church to help the poor, has become a burden when I started reading Isaiah from the Old Testament; and it just kept on growing as I journeyed through the Old Testament during my quiet time. But I think what frustrated me more than our lack of compassion for the poor, is the missed focus of the church. The church has not been seeking God in humility and trust anymore... and this is such a sad sad thing.