In Mark 3:20, Jesus was at home, and such a large crowd gathered to Him that they had no room to eat. By verse 31, His mother and brothers arrived, looking for Him. In verses 33-35, Jesus answered that His family are the ones who do the will of God. 1 Timothy 3:15 verifies that the church of the living God is the household, or family, of God. Hebrews 2:11 also states that Jesus is not ashamed to call us brethren, His siblings who share the same Father.
Jesus came to earth to give Himself on the cross as the sacrifice to pay for every sin (Romans 3:21-26). Through Him, every person can be saved. That is the summary of the gospel. Every person can be saved from sin and everlasting suffering away from the presence of God (Matthew 24:46). The Father gave Jesus as that sacrifice because He loves us all (John 3:16).
We have recently moved through a time in the year when many like to gather with family and enjoy good company. While some spent their time laughing and hugging loved ones, others spent that time alone. Some have no family here, and the holidays are lonely and dark.
If you are alone and wish you had people you care about, who care about you and love you, we, the church, are those people. Your obedience to the gospel causes God to forgive your sins and add you to His family of believers (Acts 2:47). Beginning on that day, you will be connected with people who care about you, as Jesus cares about you, who love you as He loves you. He came to die for your sins, to create a new family of God, and we will happily welcome you in.