Read Part 1.
People who give at church do it in one of three ways. I’ll call the first way tipping. In our culture there are times when we give a few dollars to someone who provides a service. The most common example is a restaurant server. If he or she gets our order right and delivers it in a timely and cheerful way, we leave a tip of 15% or more.
This is how many people give to God. When the offering is mentioned, they go digging for loose cash, drop a few bills in the plate, and maybe wonder how they’re going to buy lunches or lattes for the rest of the week. Some may plan ahead, considering their income, expenses to support their lifestyle, and how much discretionary money is left. They will arrive at what they feel is a reasonable amount and give that to the Lord.
People who give this way may be fulfilling an obligation, not wanting to seem rude or feel guilty for not participating. Or they may be truly grateful for what the church or the Lord does for them. It is possible that this is all they know, not having been taught what the Bible has to say. So ”tipping” is giving a small portion of your extra resources to God. There isn’t a biblical basis for it. It’s just what people do. Read more about Tipping, Tithing, and Grace Giving: Three Ways People Give