No witnessing is ever wasted! God will see to it that if you cast your bread on the waters it will accomplish the purpose whereunto He has sent it. His Word shall not return unto Him void (Ecc.11:1; Isa.55:11).
Witnessing always pays and it always accomplishes results. Whether you win souls or not, you’re obeying God and doing His Will and fulfilling your obligation of preaching the Gospel in all the world to every creature and delivering your soul! Even the blood of those who wouldn’t listen and who rejected you and your Message will not be upon your hands.
The Word will do the work. Once You’ve given them the Word, your job is done. They can then choose to go to Heaven or to Hell. Witnessing is merely delivering God’s Message. What the people do about it is between them and God. When you have “warned the wicked of their wicked way,” you have delivered your soul (Eze.3:19). To deliver their souls they must then receive and believe the Word of God!
God’s Word never fails!–It either saves or damns! So even if you never win a soul, you’re still winning as long as you’re faithfully witnessing!