Disciples must keep their word

Scripture reference

Matthew 5:37 (ASV)

37But let your speech be, Yea, yea; Nay, nay: and whatsoever is more than these is of the evil one.

Stories

Miss Vaughan and Mr. Leng's family agreed to pray every day for Mr. Leng, a backslidden evangelist on death row for the crime of vandalism—specifically for sharing in the looting of the Imperial Palace. After over a year of keeping to their word to pray, Mr. Leng was delivered in an unusual way.
An evangelist was convicted of his sins—disrespect for his mother and wife, aloofness for welfare of the souls under his care, theft of his church's finances, and abandonment of his opium addicted brother. He made the tough decision to publicly confess and make restitution. He kept his word.
Wang Ee exaggerated his losses and profited unjustly from the indemnity he was given for the properties he lost to the 1900 Boxer unrest. Upon confessing his sins, he promised to use every cent of this dishonest gain for good and he kept his word.
Sunejai purposed to simply stand by his word at the retrial of a case against him. He did this and was found guilty for a crime he didn't commit. But while in jail, Sunejai became God's vessel for working miracles in the hearts of criminals!
A broken and contrite Wang-ee confessed to inflating the losses he suffered during the 1900 Boxer uprising, which ensured he received an undeserved amount in indemnity from the government. Wang-ee promised full restitution, and he kept his word.
During WWII, Eusie Pokey, a Jewish man who hid at the Beje - Corrie ten Boom's family house in Holland, vowed that if God allowed his family survive the war, he would return to the Beje to sing praises at his loudest voice to God. It took thirty years, but Eusie fulfilled his promise to the Lord.
Mr. Cobb, a businessman from Boston, pledged to give incrementally to the work of God. As the Lord blessed him, he kept his promise without defaulting once. Then, as he drew near to the end of his life, a grateful Cobb was thankful to God for the grace granted him to honor his pledge.
A brother gives £5 to the orphan work in fulfillment of his promise to God despite temptation from Satan to postpone fulfilling his pledge.
After the tragic loss of her fiancee, a Christian lady is struck by paralysis of the throat and loses her next most priced possession; her voice. After she was healed and regained use of her voice, she made a vow to devote her voice specially to God's service and she kept her word!
Ho shares very sensitive information about the Cambodian war to Uong Nguyen, his brother in-law, demanding that it be a secret between them. Uong promised and has till date kept his word.
An imprisoned woman vows to follow Jesus if He rescued her from her captors. She gets freed and keeps her word, becoming a powerful witness for the cross of Jesus.
Tenzin Lahkpa had decided to follow Jesus and abandon Buddha, and he tenaciously stuck to his newfound convictions even when faced with death.
Martin Goldsmith almost reneged on his promise to speak at a church's mission weekend, when presented with a seemingly better opportunity to speak at a bigger church. But he honoured his promise after he got reminded that Christians must be trustworthy!
Miss Wrede fell and broke her ankle enroute to Abo Castle to visit the prisoners there. But even this was not enough to deter her from keeping her promise to the men there. When the prisoners heard what had happened to her, much sympathy was shown het by these special friends of her.
Mr. Cobb made a vow to God at twenty three, vowing to always give a particular amount of his money away. And as the Lord blessed Mr.Cobb, he faithfully adhered to his promise.
When Rakmi suddenly went dumb, every sacrifice to various idols and gods; done to make her regain her ability to speak proved futile. But thinking to herself that there surely should be a God able to help her, she cried to the One True God, vowing to fast once a week for the rest of her days if He healed her. Rakmi's bold prayer was answered and she too honoured her vow.
Lu-seng's desire to go to Bible School couldn't have come at a worse time for his family and especially Mary, who more than ever before, needed her husband by her side. But Mary had promised to let him go and kept to her word!
Nathaniel Cobb had promised to give away all his income above a certain level, and as the Lord prospered his business, he kept his word and honoured his covenant to the letter!
A Christian woman had promised to give out all of the money God will give her to a poor widow, and by the providence of God found a long hidden treasure chest in her home the next day. And just like she promised, gave it away; keeping her word like Jesus commanded!
Seventeen-year-old Charlie Coulson vowed to not take any anesthetic before surgery, choosing to trust fully in the Lord. And he did just that. His remarkable loyalty and prayer while on his sick bed, nearly ten years after his death, led his unbelieving physician to Christ.
In 1674, while suffering terribly from a wasting disease and with the freezing of the Chicago river at winter, Jacques Marquette, still determined to fulfill his promise to return to the natives of the Kaskaskia region, finally arrives his destination in the spring. And as a result, two thousand souls heard about Jesus!