Sandalwood tree

“How lovely are your tents, O Jacob! Your dwellings, O Israel! Like valleys that stretch out, like gardens by the riverside, like aloes planted by the Lord,Like cedars beside the waters." Numbers 24.5-6

When the Holy Spirit makes His dwelling in the human heart, there is no way for sorrows, disappointments, annoyances and other evils remain. Instead, the person is like sandalwood tree (tree whose wood is fragrant) that the Lord has planted, like cedars beside the waters. That is, they become the perfume of the Lord Jesus Christ.

Stone or flesh

"I will give you a new heart and put a new spirit within you; I will take the heart of stone out of your flesh and give you a heart of flesh." Ezekiel 36.26

This promise relates to the days after the ascension of the Lord Jesus Christ. But why not everybody receives the Holy Spirit? Because not everyone has been dedicating themselves  body, soul and spirit to receive it. Not all give up sin. Then, it really is hard to receive new heart and spirit.

Which is greater?

"Fools and blind! For which is greater, the gold or the temple that sanctifies the gold? [...] Fools and blind! For which is greater, the gift or the altar that sanctifies the gift?" Matthew 23.17-19

Tithes and offerings carry a revelation in itself: what is in the offering giver's heart.
Firstfruits show faithfulness and offerings reveal love.
While there was no sin in the world, tithes and offerings were not necessary, since the communion between the creature and the Creator was perfect. With sin came the moral and spiritual corruption. Therefore, God established the tithe and offerings to prove the heart of those who approached Him.

Abominable prayer

"One who turns away his ear from hearing the law, even his prayer is an abomination." Proverbs 28.9

Those who despise the counsel of God will have no one to turn to when calamity strikes. And then they ask, "Where is the Lord God?"

The Promise

"...that the blessing of Abraham might come upon the Gentiles in Christ Jesus, that we might receive the promise of the Spirit through faith." Galatians 3.14

Abraham was the firstfruits of God to bless his descendants. He typified Jesus, the Firstborn of God, to bless the Jews who believe.
Jesus came to extend the Abrahamic blessing to the Gentiles who believe in Him. This blessing is not limited to material possessions, but above all, to receive His Spirit.

Happy life

"He will yet fill your mouth with laughing, and your lips with rejoicing." Job 8.21

This has to happen to those who receive the heavenly gift, the baptism with the Holy Spirit. Their lives must flow rivers of peace, joy and life so that it overflows to bless others as well.

Firstfruits

"Of His own will He brought us forth by the word of truth, that we might be a kind of firstfruits of His creatures." James 1.8

Through the Lord Jesus, the Word, each one of those who are born of the Holy Spirit is God's first fruits, His firstborn, His tithe, His property, holiness to Him, in short, they are children of God.
Do you think this a small thing?
Then, wait until you get to the glorious New Jerusalem to see what the Almighty has in store for each of His own.