Hitting up Chapter 15 in the Psalms which opens with a question, possibly the most important question there is:
Psa 15:1 A psalm of David. Who may worship in your sanctuary, LORD? Who may enter your presence on your holy hill?
That’s David asking the big question, what does one need to do enter heaven? As we get older in life and death becomes more and more apparent, it is something that can weigh heavy on our hearts…what happens next, where do I go? Where did my parents go when they died? What will happen to me when I die, I have heard about this eternal paradise but what must I do to gain admission?
The psalms then focuses on the attributes of a righteous life, there’s only 4 verses and all of which are characteristics of a Christian.
Psa 15:2 Those who lead blameless lives and do what is right, speaking the truth from sincere hearts.
Psa 15:3 Those who refuse to gossip or harm their neighbors or speak evil of their friends.
Psa 15:4 Those who despise flagrant sinners, and honor the faithful followers of the LORD, and keep their promises even when it hurts.
Psa 15:5 Those who lend money without charging interest, and who cannot be bribed to lie about the innocent. Such people will stand firm forever.
Summing that up, a Christian is: honest, doesn’t trash talk, doesn’t associate with evil doers, and doesn’t take advantage of others.
These are all selfless traits, again Christian traits.
As Jesus tells Nicodemus in John’s Gospel, one must be born again to enter the kingdom of heaven.
When we are born again and have our new lives in Christ we realize our sin that is purely focused on us and rooted in selfishness, and through the process of our sanctification, which is our walk as a Christian, we slowly become more conformed to the image of Jesus, that means we have an acute awareness of our sin and no longer lie, we don’t belittle others, or hang out with trouble makers and take advantage of others.
Jesus too was selfless, in fact He was the ultimate act of selflessness when He died on our behalf. Ss we grow as Christians with new hearts, we too become less selfish and more selfless just as Christ is.