Mark 14:6 But Jesus said, “Let her alone. Why do you trouble her? She has done a good work for Me.
When the disciples thought that someone was not doing what they should have done, they got a bit upset and started telling Jesus what they thought.
What Christ did in return was to berate them for judging what was good practise in their own eyes. Jesus loves a cheerful giver and we are the ones who take what is in our own hearts and give to God.
Each of us do things in our own ways and it is God who has the say over what is right and not us!
Trust Him to show you what is required, not man!