Singapore Pools, Ministry of Education and Food offered to idols

My friend told me that every year, Singapore Pools will donate some money to the Ministry of Education, who will then distribute the money to the schools. The Methodist schools accept the money and give thanks to God for it. The Presbyterian schools refuse to accept the money since it is profit from gambling. So should the Presbyterians accept the money?

We can start by asking three questions:
Does it glorify God? (1 Corinthians 10:31)
Will it stumble a weaker brother? (1 Corinthians 8:13)
Can you do without it? (1 Corinthians 10:23)

We can look at the example in the Bible about food offered to idols.

All food is acceptable if received with thanksgiving (1 Corinthians 8:4-13, Romans 14:13-23).

On the other hand, we are to abstain from meats offered to idols (Acts 15:20, Acts 15:29, Revelation 2:14, Revelation 2:20). We cannot participate in idol worship (1 Corinthians 10:14-22).

Some Bible verses for your consideration:

1 Corinthians 10:23-11:1 NLT
You say, “I am allowed to do anything”—but not everything is good for you. You say, “I am allowed to do anything”—but not everything is beneficial. Don’t be concerned for your own good but for the good of others.

So you may eat any meat that is sold in the marketplace without raising questions of conscience. For “the earth is the Lord’s, and everything in it.”

If someone who isn’t a believer asks you home for dinner, accept the invitation if you want to. Eat whatever is offered to you without raising questions of conscience. (But suppose someone tells you, “This meat was offered to an idol.” Don’t eat it, out of consideration for the conscience of the one who told you. It might not be a matter of conscience for you, but it is for the other person.) For why should my freedom be limited by what someone else thinks? If I can thank God for the food and enjoy it, why should I be condemned for eating it?

So whether you eat or drink, or whatever you do, do it all for the glory of God. Don’t give offense to Jews or Gentiles or the church of God. I, too, try to please everyone in everything I do. I don’t just do what is best for me; I do what is best for others so that many may be saved. And you should imitate me, just as I imitate Christ.

1 Corinthians 10:14-22 NLT
So, my dear friends, flee from the worship of idols. You are reasonable people. Decide for yourselves if what I am saying is true. When we bless the cup at the Lord’s Table, aren’t we sharing in the blood of Christ? And when we break the bread, aren’t we sharing in the body of Christ? And though we are many, we all eat from one loaf of bread, showing that we are one body. Think about the people of Israel. Weren’t they united by eating the sacrifices at the altar?

What am I trying to say? Am I saying that food offered to idols has some significance, or that idols are real gods? No, not at all. I am saying that these sacrifices are offered to demons, not to God. And I don’t want you to participate with demons. You cannot drink from the cup of the Lord and from the cup of demons, too. You cannot eat at the Lord’s Table and at the table of demons, too. What? Do we dare to rouse the Lord’s jealousy? Do you think we are stronger than he is?