Let me start by sharing my all time favorite verse, which is crucial in answering this question. Romans 8:38-39 says, "For I am convinced that neither death, nor life, nor angels, nor principalities, nor things present, nor things to come, nor powers, nor height, nor depth, nor any other created thing, will be able to separate us from the love of God, which is in Christ Jesus our Lord."
None of us will ever reach God's standard (Romans 3:23), but He has promised us that anyone who believes in Jesus Christ will be saved (John 3:16). The Creator of the universe died in our place, took the punishment we deserved, then came back to life. Once you have placed your faith in Christ by confessing that you are full of and in need of Him as your Savior, there is nothing that can separate you from him. Nothing. The apostle Paul went through great lengths to close any "loopholes" that people may think up when it comes to our salvation.
Look at your doubts. Where do they stem from? Do you doubt that God really would care for you enough to save you? To die for you? Bury those doubts because the answer is an undeniable, "YES, He does." No matter how good or bad you feel you are, the answer is the same: "YES, He does." Just read Romans 5:8, "But God demonstrated His own love toward us, in that while we were yet sinners, Christ died for us."
On the flipside, if your doubts are not in God's ability, but your own personal belief, take a moment to evaluate yourself. Examine if you have truly believed God's promise. Second Corinthians 13:5 tells us that we are to "examine ourselves" to be sure that Christ is our Savior and that the Holy Spirit is in us. Your faith will be evident through works (James 2:14-26) and the fruit of the Holy Spirit.
Push everything else aside and honestly answer that question to yourself. If the answer is yes, then rejoice, there is nothing that can take you from Him! Your salvation is sealed with an impenetrable seal. Even when you fall down spiritually and are feeling low, your salvation is secure. Being saved does not depend on your mood or anything else you do (Ephesians 2:8).
If, when you ask yourself that question, you honestly have to answer no, then there is nothing preventing you from stopping everything you are doing right now and believing in the Lord Jesus Christ. In that moment, you will be saved!
"That if you confess with your mouth Jesus as Lord, and believe with your heart that God raised Him from the dead, you will be saved; for with the heart a person believes, resulting in righteousness, and with the mouth he confesses, resulting in salvation." —Romans 10:9-10
Many Christians doubt their salvation at one point or another. Sometimes the awesome simplicity of God's grace is too difficult to grasp. We need to remember this: None of us will ever reach God's standard (Romans 3:23), but He has promised us that anyone who believes in Jesus Christ will be saved (John 3:16). Where do your doubts come from? Do you doubt that God really would care enough to save you? The Bible says, YES, He does (Romans 5:8). Do you doubt your own personal belief? Then evaluate your heart (2 Corinthians 13:5). If the Holy Spirit is in you, your faith will be evident through works (James 2:14-26).
Heidi Joelle spends her days staring at paperwork and making sure it is where it is supposed to be, how it is supposed to be, when it is supposed to be. And then she comes home and makes sure the porky little dog isn't eating a trashcan. Between these two events, she tries to learn and see as much of the world around her as possible.