"'For on My holy mountain, on the mountain height of Israel,' says the Lord God, 'there all the house of Israel, all of them in the land, shall serve Me; there I will accept them, and there I will require your offerings and the firstfruits of your sacrifices, together with all your holy things.'" (Ezekiel 20:40)
There's a difference between a donation and an oblation. When you give to the Lord, it's an offering (an oblation), it's called a holy giving, and it's a connection between you and your heavenly Father-- that's different than donations. There are endeavors to which we can make donations. We can donate to charity and worthy causes, but when it comes to giving to God, it's not a donation. Your offerings and tithes that you give to the Lord are oblations and must be important to you, you must give them with reverence.
This is important because how you deal with your giving determines the results you're going to get from God. If you give as a donation, you get what a donation promises. You don't donate to God, you give an offering to Him-- He's God! Your offering is a testimony that you recognize and are honoring Him as God, not as a man.
Sometimes donations and contributions may be called for in the church. It could be for a church project or endeavor; nonetheless, your tithes, offerings, seed offerings, etc. aren't donations or contributions, but oblations to the Lord. Remember, worshiping the Lord must be according to His prescribed order, or we'll lose the blessing promised. The Word teachings that there are blessings connected to oblations. Donations and contributions have their own specific blessings as well.
For instance, if you give to the poor, that's not an offering, it's a loan to God (Proverbs 19:17) and has its blessings. An offering to God is very different. This understanding is important because, when you want to have maximum results from God, you have to do God's things God's way.
Dear heavenly Father, I worship you with my giving and oblations. I declare that I continually increase in the grace of giving, even as I abound in wisdom and understanding. Through my commitments, the furtherance of the Gospel is swift, and many lives are touched, all to the praise and glory of Your Name. Amen.
Further Study: 2 Corinthians 9:7-8; 2 Thessalonians 1:3