Tithing is paid with faith

While tithing is paid with money, more importantly it is paid with faith. I have never met an individual who paid an honest tithe who complained about it. Rather, he put his trust in the Lord, and the Lord never failed him.
President Gordon B. Hinckley, “Let Virtue Garnish Thy Thoughts Unceasingly,” April 2007 General Young Women Meeting

The temporal and spiritual blessings of tithing are specifically tailored to us and our families, according to the Lord’s will. But to receive them, we must obey the law upon which they are predicated. In the case of tithing, the Lord has said, “Bring ye all the tithes into the storehouse, that there may be meat in mine house, and prove me now herewith, saith the Lord of hosts, if I will not open you the windows of heaven, and pour you out a blessing, that there shall not be room enough to receive it.”

Would any of us intentionally reject an outpouring of blessings from the Lord? Sadly, this is what we do when we fail to pay our tithing. We say no to the very blessings we are seeking and praying to receive. If you are one who has doubted the blessings of tithing, I encourage you to accept the Lord’s invitation to “prove [Him] now herewith.” Pay your tithing. Unlock the windows of heaven. You will be abundantly blessed for your obedience and faithfulness to the Lord’s laws and commandments.

Tithing: A Test of Faith with Eternal Blessings, Elder Robert D. Hales, October 2002 General Conference

Your attitude is important in paying tithing. Pay it because you love the Lord and have faith in Him. Pay it willingly with a thankful heart. Pay it first, even when you think you don’t have enough money to meet your other needs. Doing so will help you overcome selfishness and be more receptive to the Spirit.
For the Strength of Youth

Paying tithing, even in tough times

Some years ago, long after he had returned from his mission, Bishop J. Richard Yates, of the Durham Third Ward in the Durham North Carolina Stake, was out on the family farm in Idaho, helping his father milk the cows and do some of the evening chores. Because of limited family circumstances, Richard’s father, Brother Tom Yates, had not been able to go on a mission in his youth. But that disappointment only strengthened Brother Yates’s vow that what he had not been able to afford, his sons would certainly realize—a full-time mission for the Lord—whatever the sacrifice involved.

In those days in rural Idaho it was customary to give a young man a heifer calf as soon as he was old enough to take care of it. The idea was that the young man would raise the animal, keep some of the offspring, and sell others to help pay for the feed. Fathers wisely understood that this was a way to teach their sons responsibility as they earned money for their missions.

Young Richard did well with that gift of a first calf and, over time, expanded the herd to eight. Along the way he invested some of the income from the milk he sold to buy a litter of pigs. He had nearly sixty of those when his call finally arrived. It was the family’s plan that they would sell future litters of the pigs to supplement income from the sale of the dairy milk to cover the costs of Richard’s missionary labors.