I personally think that what John taught about basically sharing is more in line with what Yeshua taught and what G-d wants from us.
You put some paper into a 'collection plate' and then go about your day/week.----No connection
You see or hear or read about someone in need and you meet that need, food, shelter, clothing,, etc. ---You make a connection.
Yeshua who had more knowledge of everyone on earth, still when face to face with another showed the human attributes we should be showing.
He had pity Matt 14:13-14;
And Jesus went forth, and saw a great multitude, and was moved with compassion toward them, and he healed their sick.
He also did not send them away but fed them too.
20:29-34
"So Jesus had compassion on them, and touched their eyes: and immediately their eyes received sight"
Mark 6:34;
When Jesus landed and saw a large crowd, he had compassion on them, because they were like sheep without a shepherd. So he began teaching them many things.
Luke 7:11-17
Soon afterward, Jesus went to a town called Nain, and his disciples and a large crowd went along with him.As he approached the town gate, a dead person was being carried out—the only son of his mother, and she was a widow. And a large crowd from the town was with her. When the Lord saw her, his heart went out to her and he said, “Don’t cry.
Then he went up and touched the bier they were carrying him on, and the bearers stood still. He said, “Young man, I say to you, get up!” The dead man sat up and began to talk, and Jesus gave him back to his mother."
He wept (John 11:35-36)
He became involved with them, not just told them to be well and went on his way. It's compassion that is shown for another that tithing just doesn't begin to show.
It's about giving and getting. Giving another what they need and in turn you get something money can't buy.
It's as Yeshua said when you give in secret, the Father in heaven see it and your reward is with him. It is not an earthly reward but one of becoming more like him----compassion