For American Thanksgiving today, the Revised Common Lectionary gives these readings:

Joel 2:21-27
21 �Fear not, O land;
be glad and rejoice,
for the Lord has done great things!
22 Fear not, you beasts of the field,
for the pastures of the wilderness are green;
the tree bears its fruit;
the fig tree and vine give their full yield.

23 �Be glad, O children of Zion,
and rejoice in the Lord your God,
for he has given the early rain for your vindication;
he has poured down for you abundant rain,
the early and the latter rain, as before.

24 �The threshing floors shall be full of grain;
the vats shall overflow with wine and oil.
25 I will restore[a] to you the years
that the swarming locust has eaten,
the hopper, the destroyer, and the cutter,
my great army, which I sent among you.

26 �You shall eat in plenty and be satisfied,
and praise the name of the Lord your God,
who has dealt wondrously with you.
And my people shall never again be put to shame.
27 You shall know that I am in the midst of Israel,
and that I am the Lord your God and there is none else.
And my people shall never again be put to shame.

Psalm 126
126 When the Lord restored the fortunes of Zion,
we were like those who dream.
2 Then our mouth was filled with laughter,
and our tongue with shouts of joy;
then they said among the nations,
�The Lord has done great things for them.�
3 The Lord has done great things for us;
we are glad.

4 Restore our fortunes, O Lord,
like streams in the Negeb!
5 Those who sow in tears
shall reap with shouts of joy!
6 He who goes out weeping,
bearing the seed for sowing,
shall come home with shouts of joy,
bringing his sheaves with him.

1 Timothy 2:1-7
2 First of all, then, I urge that supplications, prayers, intercessions, and thanksgivings be made for all people, 2 for kings and all who are in high positions, that we may lead a peaceful and quiet life, godly and dignified in every way. 3 This is good, and it is pleasing in the sight of God our Savior, 4 who desires all people to be saved and to come to the knowledge of the truth. 5 For there is one God, and there is one mediator between God and men, the man[a] Christ Jesus, 6 who gave himself as a ransom for all, which is the testimony given at the proper time. 7 For this I was appointed a preacher and an apostle (I am telling the truth, I am not lying), a teacher of the Gentiles in faith and truth.

Matthew 6:25-33
25 �Therefore I tell you, do not be anxious about your life, what you will eat or what you will drink, nor about your body, what you will put on. Is not life more than food, and the body more than clothing? 26 Look at the birds of the air: they neither sow nor reap nor gather into barns, and yet your heavenly Father feeds them. Are you not of more value than they? 27 And which of you by being anxious can add a single hour to his span of life?[a] 28 And why are you anxious about clothing? Consider the lilies of the field, how they grow: they neither toil nor spin, 29 yet I tell you, even Solomon in all his glory was not arrayed like one of these. 30 But if God so clothes the grass of the field, which today is alive and tomorrow is thrown into the oven, will he not much more clothe you, O you of little faith? 31 Therefore do not be anxious, saying, �What shall we eat?� or �What shall we drink?� or �What shall we wear?� 32 For the Gentiles seek after all these things, and your heavenly Father knows that you need them all. 33 But seek first the kingdom of God and his righteousness, and all these things will be added to you.