“So they said to him, “Then what sign do you do, that we may see and believe you? What work do you perform?”
“In spite of all this, they still sinned; despite his wonders, they did not believe.”
“They are a people who go astray in their heart, and they have not known my ways.”
“And he said to them, “O foolish ones, and slow of heart to believe all that the prophets have spoken!”
John 20:24 Now Thomas, one of the twelve, called the Twin, was not with them when Jesus came. So the other disciples told him, “We have seen the Lord.” But he said to them, “Unless I see in his hands the mark of the nails, and place my finger into the mark of the nails, and place my hand into his side, I will never believe.” Eight days later, his disciples were inside again, and Thomas was with them. Although the doors were locked, Jesus came and stood among them and said, “Peace be with you.” Then he said to Thomas, “Put your finger here, and see my hands; and put out your hand, and place it in my side. Do not disbelieve, but believe.” Thomas answered him, “My Lord and my God!” Jesus said to him, “Have you believed because you have seen me? Blessed are those who have not seen and yet have believed.” Now Jesus did many other signs in the presence of the disciples, which are not written in this book; but these are written so that you may believe that Jesus is the Christ, the Son of God, and that by believing you may have life in his name.
Psalms 78:11 They forgot his works and the wonders that he had shown them. In the sight of their fathers he performed wonders in the land of Egypt, in the fields of Zoan. He divided the sea and let them pass through it, and made the waters stand like a heap. In the daytime he led them with a cloud, and all the night with a fiery light. He split rocks in the wilderness and gave them drink abundantly as from the deep. He made streams come out of the rock and caused waters to flow down like rivers. Yet they sinned still more against him, rebelling against the Most High in the desert. They tested God in their heart by demanding the food they craved. They spoke against God, saying, “Can God spread a table in the wilderness? He struck the rock so that water gushed out and streams overflowed. Can he also give bread or provide meat for his people?” Therefore, when the LORD heard, he was full of wrath; a fire was kindled against Jacob; his anger rose against Israel, because they did not believe in God and did not trust his saving power.
Hebrews 3:12 Take care, brothers, lest there be in any of you an evil, unbelieving heart, leading you to fall away from the living God.
Hebrews 3:18 And to whom did he swear that they would not enter his rest, but to those who were disobedient? So we see that they were unable to enter because of unbelief.
Hebrews 4:1 Therefore, while the promise of entering his rest still stands, let us fear lest any of you should seem to have failed to reach it. For good news came to us just as to them, but the message they heard did not benefit them, because they were not united by faith with those who listened.
Psalms 85:8 Let me hear what God the LORD will speak, for he will speak peace to his people, to his saints; but let them not turn back to folly.
2 Peter 2:19 They promise them freedom, but they themselves are slaves of corruption. For whatever overcomes a person, to that he is enslaved. For if, after they have escaped the defilements of the world through the knowledge of our Lord and Savior Jesus Christ, they are again entangled in them and overcome, the last state has become worse for them than the first. For it would have been better for them never to have known the way of righteousness than after knowing it to turn back from the holy commandment delivered to them.
It is not uncommon for unbelief to enter our heart and mind. We have a sinful nature that does not want to believe in, trust in, cling to, or rely on God. Just look at our culture and how far it has fallen away from God. Pornography is viewed as adult entertainment. Child pornography is at an all time high. Domestic minor sex trafficking is climbing. Higher education explaining and teaching there is no God. People never being satisfied. That which was shameful and done in secret is now a normal way of life. It is as though people are living without a thought that there will be a day of judgement coming. We choose to live for God, believing in Him, or we choose to deny Him. We choose if we commit all of our heart, mind, and soul to humbly serving, honoring, following, obeying, and loving Him and His plan and purpose for our lives. There is no middle ground. We serve Him fully or not at all. Our culture seems to have us believing the lie that it is possible to live in a middle place, somewhere between full commitment to God and living as though He has no place in our daily lives. This lie tells us that we are good enough or doing good enough to receive eternal life. The truth of his word says it is not by works or being good enough. It is by faith alone we are saved. The lie has us performing for that which cannot be obtained by performance. The lie has us pretending everything is ok when in fact our heart is far from Him. God is real. Jesus Christ death and resurrection is real. Salvation by faith through Him alone is real. God’s word is truth. A day of judgement coming is real. Eternity is real. Heaven is real. Hell is real. Saying and believing this is false does not make it false. Denying sin is sin does not make it right. Everything we do ought to be done in light of His word. Our culture and our sinful nature want us to deny God fully into our lives. Do you want purpose in your life? Believe in Him with all your heart, mind and soul. Trust in Him alone. Live for Him alone. Stay in His word. Study His word. Ask Him to make His word alive in you.