Your salvation should never be a guessing game. If it is, it will be very difficult to grow spiritually and will impact every area of your life, including your personal outreach.
Biblically, there’s no reason you, as a believer, should guess or doubt your place with Christ. God does not extend a possibility but a promise regarding your position in eternity: “These things I have written to you who believe in the name of the Son of God, that you may know that you have eternal life…” (1 John 5:13).
In 1 John 5:13, know means "to be absolutely certain"—like people know their address or how many fingers are on a hand. You should be just as certain that heaven is your future destination.
That assurance is ours the moment we place our trust in Christ alone to save us. He died for us as our substitute, paid for every wrong we’ve done, and rose again the third day. Jesus promises to those who trust in Christ alone, “Most assuredly, I say to you, he who believes in Me has everlasting life” (John 5:47).
Why is that assurance so critical to our spiritual growth? We cannot grow closer in a relationship with someone if we don’t first know that person. If “He loves me/He loves me not” is our mentality, we may be certain of our feelings toward Him but uncertain of His feelings toward us.
It becomes very difficult to “grow in the grace and knowledge of the Lord and Savior Jesus Christ” (2 Pet. 3:18). How can we draw close to a God in prayer whom we are not sure we know? How can we dig into a love letter (the Bible) from a God we’re not sure knows us?
In relation to evangelism, it’s even more difficult to introduce people to a person you’re not certain you’ve met, invite them to be part of a family you are not sure you’re in, or simply tell them about a home where you are not certain you will join them. If instead you are as certain of heaven as though you are already there, you can enthusiastically say, “I want you there, too!”
God never designed your salvation to be a guessing game. He said it; He made a way for it; He guaranteed it! That settles it forever—you are His! Let it excite your growth and your outreach.