New Revised Standard Version
Those who observe the day, observe it in honor of the Lord. Also those who eat, eat in honor of the Lord, since they give thanks to God; while those who abstain, abstain in honor of the Lord and give thanks to God.

Contemporary English Version
Any followers who count one day more important than another day do it to honor their Lord. And any followers who eat meat give thanks to God, just like the ones who don't eat meat.

New American Bible
Whoever observes the day, observes it for the Lord. Also whoever eats, eats for the Lord, since he gives thanks to God; while whoever abstains, abstains for the Lord and gives thanks to God.

Douay-Rheims Bible
He that regardeth the day regardeth it unto the Lord. And he that eateth eateth to the Lord: for he giveth thanks to God. And he that eateth not, to the Lord he eateth not and giveth thanks to God.

He that regardeth the day regardeth it unto the Lord. And he that eateth eateth to the Lord: for he giveth thanks to God. And he that eateth not, to the Lord he eateth not and giveth thanks to God.

regardeth.

Galatians 4:10 You observe days and months and times, and years.

regardeth it.

Exodus 12:14,42 And this day shall be for a memorial to you; and you shall keep it a feast to the Lord in your generations, with an everlasting observance. . . .

Exodus 16:25 And Moses said: Eat it to day, because it is the sabbath of the Lord: to day it shall not be found in the field.

Isaiah 58:5 Is this such a fast as I have chosen: for a man to afflict his soul for a day? is this it, to wind his head about like a circle, and to spread sackcloth and ashes? wilt thou call this a fast, and a day acceptable to the Lord?

Zechariah 7:5,6 Speak to all the people of the land, and to the priests, saying: When you fasted, and mourned in the fifth and the seventh month for these seventy years: did you keep a fast unto me? . . .

for.

Matthew 14:19 And when he had commanded the multitude to sit down upon the grass, he took the five loaves and the two fishes, and looking up to heaven, he blessed, and brake, and gave the loaves to his disciples, and the disciples to the multitudes.

Matthew 15:36 And taking the seven loaves and the fishes, and giving thanks, he brake, and gave to his disciples, and the disciples gave to the people.

John 6:28 They said therefore unto him: What shall we do, that we may work the works of God?

1 Corinthians 10:30,31 If I partake with thanksgiving, why am I evil spoken of for that for which I give thanks? . . .

1 Timothy 4:3-5 Forbidding to marry, to abstain from meats, which God hath created to be received with thanksgiving by the faithful and by them that have known the truth. . . .