In Romans 1:14-16,  Paul says:   “Both to Greeks and to barbarians (to the cultured and to the uncultured), both to the wise and the foolish, I have an obligation to discharge and a duty to perform and a debt to pay.  So, for my part, I am willing and eagerly ready to preach the Gospel to you also who are in Rome.  For I am not ashamed of the Gospel (good news) of Christ, for it is God’s power working unto salvation [for deliverance from eternal death] to everyone who believes with a personal trust and a confident surrender and firm reliance, to the Jew first and also to the Greek.”

Robert Robinson (1770-1856) penned the thought beautifully in the last two stanzas of his thoughtful hymn, Come, Thou Fount of Every Blessing:

O to grace how great a debtor
Daily I’m constrained to be!
Let Thy goodness, like a fetter,
Bind my wandering heart to Thee.
Prone to wander, Lord, I feel it,
Prone to leave the God I love;
Here’s my heart, O take and seal it,
Seal it for Thy courts above.

O that day when freed from sinning,
I shall see Thy lovely face;
Clothed then in blood washed linen
How I’ll sing Thy sovereign grace;
Come, my Lord, no longer tarry,
Take my ransomed soul away;
Send thine angels now to carry
Me to realms of endless day.

We who believe are debtors to grace and to God because we have received grace and mercy and forgiveness of sins; therefore we are debtors to ALL men to tell them what Jesus Christ has done for us!