Assumptions: Unproven Beliefs That Shape Our Thoughts and Decisions

Assumptions are unproven beliefs presumed true—yet often flawed—leading to incorrect conclusions and poor decisions. This article explores common spiritual misconceptions, the danger of false beliefs, and how grounding ourselves in biblical truth protects us from deception.

The Danger of Unexamined Beliefs

Assumptions are opinions formed without evidence. They are not truth, but perceptions shaped by emotion, culture, or tradition. Acting on assumptions can lead to misguided decisions, especially in spiritual matters. It is unwise to answer a matter without understanding the facts (Prov 18:13). Jumping to conclusions often results in error. The Israelites once questioned God’s presence because of their suffering: “If God is for us, why have all these bad things happened to us?” (Jdg 6:13). Their assumption was that hardship meant abandonment. But the truth is that God uses trials to shape our character and conform us to the image of Christ (Act 14:22; Rom 8:28).

Don’t assume that all preachers are genuine or that their teachings reflect God’s truth. Jesus warned of false prophets who come as “wolves in sheep’s clothing” (Mt 7:15). Heresy and deception were present even in the early church. That is why we must test every teaching against Scripture—the ultimate standard of truth (Act 17:11; 1 Jn 4:1).

Clearly establish the facts

Common False Assumptions in Faith

One dangerous assumption is that becoming a Christian guarantees a trouble-free life. This is not biblical. Jesus said, “In this world you will have trouble” (Jn 16:33). Trials are part of the Christian journey, designed to strengthen faith and dependence on God.

Another false belief is that salvation can be secured by a past prayer or moment of decision, regardless of present lifestyle. Jesus said, “Not everyone who says to me, ‘Lord, Lord,’ will enter the kingdom of heaven, but only those who do the will of my Father who is in heaven” (Mt 7:21). Eternal security is not unconditional; it requires ongoing faith, repentance, and obedience (Jn 8:11; Rom 6:13; 1 Cor 6:9,10).

Satan blinds the minds of the unsaved, leading them to assume they are acceptable to God based on good works (Act 26:18; 2 Cor 4:4). But Ephesians 2:8–9 makes clear: salvation is by grace through faith, not by works. Good deeds are the fruit of salvation, not its cause.

It is essential to obtain true facts so we do not form unfounded opinions, false beliefs, or react inappropriately. If uncertain, seek clarification. Do not speak where knowledge is lacking.

Search for the truth to have a correct belief

Correcting Misconceptions with Truth

Other common but false assumptions include:

“I’ve failed, so I’m a failure.” The truth is, failure is a teacher. You only become a failure if you stop trying.
“No one loves me.” But God does—so much that He sent His Son to die for you (Jn 3:16).
“Everyone else is doing it.” Popularity doesn’t make sin right in God’s eyes.
“My church says if I do _____, I’ll go to heaven.” Salvation is not earned by rituals or doctrines, but by faith in Christ’s sacrifice (Eph 2:8,9).

Reflection and Application

What assumptions am I making about God, salvation, or Christian living that may not be biblically grounded?
Am I testing what I hear in sermons or teachings against Scripture?
Do I equate emotional experiences or past decisions with ongoing salvation?
How can I grow in discernment and rely more on God’s truth than human opinions?