What does Mark 12:41 mean?
"The treasury" mentioned here doesn't refer to the collection of money used to build and support the temple (Joshua 6:19; Ezra 2:69; Nehemiah 7:70–71), but the actual area of the temple where the offerings are collected; this area is also called the Court of Women because women are not allowed to enter any further into the temple complex. That Jesus is "opposite" the treasury suggests He may be sitting under the east portico, not far from the Beautiful Gate which looks out over the Mount of Olives, which is His next destination (Mark 13:1–3).Shekalim, Chapter 6, Mishnah 5 says the temple had thirteen trumpet-shaped chests, one each for the present and previous censuses (Exodus 30:13), four to support the sacrifices, one for the mercy seat, and six for freewill offerings. The fact that the woman does not put in a shekel and the rich give more than a shekel suggests Jesus is referring to the freewill offerings. When Jesus says that the hypocrites "sound" a "trumpet" when they give (Matthew 6:2), He is probably referring to the noise a handful of coins makes when dropped into one of these chests.
It is, of course, moral and acceptable to donate a large amount of money to a church or ministry. Christian organizations appreciate generosity! Jesus is merely using this opportunity to explain that the sacrificial posture of this woman's heart is more precious to God than all the gold and silver the rich men give. God already owns the whole world; what He wants is our faithfulness (Psalm 50:7–11).