Isaiah 6 & Hebrews 13

Isaiah 6

    In the year that King Uzziah died I saw the Lord sitting upon a throne, high and lifted up; and the train of his robe filled the temple. Above him stood the seraphim. Each had six wings: with two he covered his face, and with two he covered his feet, and with two he flew. And one called to another and said:

    “Holy, holy, holy is the LORD of hosts;
    the whole earth is full of his glory!”
    
    
        And the foundations of the thresholds shook at the voice of him who called, and the house was filled with smoke. And I said: “Woe is me! For I am lost; for I am a man of unclean lips, and I dwell in the midst of a people of unclean lips; for my eyes have seen the King, the LORD of hosts!”

    Then one of the seraphim flew to me, having in his hand a burning coal that he had taken with tongs from the altar. And he touched my mouth and said: “Behold, this has touched your lips; your guilt is taken away, and your sin atoned for.”

    And I heard the voice of the Lord saying, “Whom shall I send, and who will go for us?” Then I said, “Here I am! Send me.” And he said, “Go, and say to this people:

    “‘Keep on hearing, but do not understand;
    keep on seeing, but do not perceive.’
    Make the heart of this people dull,
        and their ears heavy,
        and blind their eyes;
    lest they see with their eyes,
        and hear with their ears,
    and understand with their hearts,
        and turn and be healed.”
    Then I said, “How long, O Lord?”
    And he said:
    “Until cities lie waste
        without inhabitant,
    and houses without people,
        and the land is a desolate waste,
    and the LORD removes people far away,
        and the forsaken places are many in the midst of the land.
    And though a tenth remain in it,
        it will be burned again,
    like a terebinth or an oak,
        whose stump remains
        when it is felled.”
    The holy seed is its stump.
    

(Isaiah 6 ESV)

Hebrews 13

    Let brotherly love continue. Do not neglect to show hospitality to strangers, for thereby some have entertained angels unawares. Remember those who are in prison, as though in prison with them, and those who are mistreated, since you also are in the body. Let marriage be held in honor among all, and let the marriage bed be undefiled, for God will judge the sexually immoral and adulterous. Keep your life free from love of money, and be content with what you have, for he has said, “I will never leave you nor forsake you.” So we can confidently say,

    “The Lord is my helper;
        I will not fear;
    what can man do to me?”
    
    
        Remember your leaders, those who spoke to you the word of God. Consider the outcome of their way of life, and imitate their faith. Jesus Christ is the same yesterday and today and forever. Do not be led away by diverse and strange teachings, for it is good for the heart to be strengthened by grace, not by foods, which have not benefited those devoted to them. We have an altar from which those who serve the tent have no right to eat. For the bodies of those animals whose blood is brought into the holy places by the high priest as a sacrifice for sin are burned outside the camp. So Jesus also suffered outside the gate in order to sanctify the people through his own blood. Therefore let us go to him outside the camp and bear the reproach he endured. For here we have no lasting city, but we seek the city that is to come. Through him then let us continually offer up a sacrifice of praise to God, that is, the fruit of lips that acknowledge his name. Do not neglect to do good and to share what you have, for such sacrifices are pleasing to God.

    Obey your leaders and submit to them, for they are keeping watch over your souls, as those who will have to give an account. Let them do this with joy and not with groaning, for that would be of no advantage to you.

    Pray for us, for we are sure that we have a clear conscience, desiring to act honorably in all things. I urge you the more earnestly to do this in order that I may be restored to you the sooner.

    Now may the God of peace who brought again from the dead our Lord Jesus, the great shepherd of the sheep, by the blood of the eternal covenant, equip you with everything good that you may do his will, working in us that which is pleasing in his sight, through Jesus Christ, to whom be glory forever and ever. Amen.

    I appeal to you, brothers, bear with my word of exhortation, for I have written to you briefly. You should know that our brother Timothy has been released, with whom I shall see you if he comes soon. Greet all your leaders and all the saints. Those who come from Italy send you greetings. Grace be with all of you.

(Hebrews 13 ESV)

Hebrews 13: Too often, we fall into the mindset of Christian obedience consisting primarily of various things we should prevent ourselves from doing. However, if we're not careful, this way of thinking can lead us to box ourselves in to a more isolated and manageable lifestyle and can lead us toward self-loathing or self-righteousness depending on our performance. Christian obedience is more properly practiced in what we do rather than in simply what we don't do. In neglecting to practice certain sins, let's not find ourselves "neglecting to do good" as well.

On account of the insurmountable good that Christ has done for us, we should live daily on the 'holy hunt' for opportunities to do good to others and share sacrificially what we can (time, money, energy, faith, resources, etc.) for their own blessing and benefit. This kind of proactive sacrificing along with continual sacrifices of humble praise for our great and gracious God are the greater acts of worship laid upon the Christian altar that are pleasing in the sight of our Lord.