The whole Jewish nation seemed to be affected by the mission of John. The threatenings of God on account of their sins, repeated by the prophet, for a time alarmed them. John knew that they cherished the idea that, because they were of the seed of Abraham, they were securely established in the favor of God, while their course of action was abhorred of him. Their conduct was, in many respects, even worse than that of the heathen nations to whom they felt so much superior. The prophet faithfully presented to them the ability of God to raise up those who would take their place, and would become more worthy children of Abraham. He told them plainly that God was not dependent upon them to fulfill his purposes; for he could provide ways and means independent of them to carry forward his great work which was to be accomplished in purity and righteousness. John further adds: “And now also the ax is laid unto the root of the trees; therefore every tree which bringeth not forth good fruit is hewn down, and cast into the fire.” He impresses upon them that the value of the tree is ascertained by the fruit it produces. Though a tree may bear an exalted name, yet if it produces no fruit, or if its fruit is unworthy of the name, the name will avail nothing in saving the tree from destruction. “Of thorns men do not gather figs, nor of a bramblebush gather they grapes.” {2SP 50.1}

Hele det jødiske folk lod til at blive påvirket af Johannes mission. Guds trusler på grund af deres synder, gentog profeten, foruroligede dem for en tid. Johannes vidste at de gemte på tanken at, fordi de var af Abrahams sæd, var de visselig grundfæstet i Guds begunstigelse, medens deres handlemåde var en afsky for ham. Deres optræden var i mange henseender endog værre end de hedenske nationers som de følte sig så overlegne overfor. Profeten frembragte Guds evne over for dem, til at han kunne oprejse dem som ville tage deres plads, og vil være mere værd som Abrahams børn. Han fortalte dem tydelig at Gud ikke var afhængige af dem til at opfylde hans hensigter; for han kunne skabe veje og midler uden om dem til at udføre sit store værk, som skulle udrettes i renhed og retfærdighed. Johannes tilføjer: “Øksen ligger allerede ved roden af træerne; så skal da hvert træ, som ikke bærer god frugt, hugges om og kastes i ilden." Han indprenter over for dem at træets værdi kendes ved de frugter det giver. Selvom et træ kan bære et ophøjet navn, vil det, selvom det ikke bærer frugter, eller hvis det er sit navn uværdig, vil navnet ikke være til anden nytte end at bevare træet fra udslettelse. "Man samler jo ikke figener af tjørn, plukker heller ikke druer af en tornebusk."