Where are the words, "Pray the Sinners prayer," or "Have a personal relationship with Jesus Christ."
Here are a couple of sinners prayers:
Luke 18:9-14: World English Bible (WEB)
9 He spoke also this parable to certain people who were convinced of their own righteousness, and who despised all others.
10 “Two men went up into the temple to pray; one was a Pharisee, and the other was a tax collector. 11 The Pharisee stood and prayed to himself like this: ‘God, I thank you, that I am not like the rest of men, extortionists, unrighteous, adulterers, or even like this tax collector. 12 I fast twice a week. I give tithes of all that I get.’ 13 But the tax collector, standing far away, wouldn’t even lift up his eyes to heaven, but beat his breast, saying, ‘God, be merciful to me, a sinner!’ 14 I tell you, this man went down to his house justified rather than the other; for everyone who exalts himself will be humbled, but he who humbles himself will be exalted.”
Psalm 51: World English Bible (WEB)
Have mercy on me, God, according to your loving kindness.
According to the multitude of your tender mercies, blot out my transgressions.
2 Wash me thoroughly from my iniquity.
Cleanse me from my sin.
3 For I know my transgressions.
My sin is constantly before me.
4 Against you, and you only, have I sinned,
and done that which is evil in your sight;
that you may be proved right when you speak,
and justified when you judge.
5 Behold, I was born in iniquity.
In sin my mother conceived me.
6 Behold, you desire truth in the inward parts.
You teach me wisdom in the inmost place.
7 Purify me with hyssop, and I will be clean.
Wash me, and I will be whiter than snow.
8 Let me hear joy and gladness,
That the bones which you have broken may rejoice.
9 Hide your face from my sins,
and blot out all of my iniquities.
10 Create in me a clean heart, O God.
Renew a right spirit within me.
11 Don’t throw me from your presence,
and don’t take your holy Spirit from me.
12 Restore to me the joy of your salvation.
Uphold me with a willing spirit.
13 Then I will teach transgressors your ways.
Sinners shall be converted to you.
14 Deliver me from the guilt of bloodshed, O God, the God of my salvation.
My tongue shall sing aloud of your righteousness.
15 Lord, open my lips.
Personal relationship? What is more personal and intimate than being a child of God?
Romans 5:8 ESV
But God shows his love for us in that while we were still sinners, Christ died for us.
John 1:10-13 ESV
He was in the world, and the world was made through him, yet the world did not know him. He came to his own, and his own people did not receive him. But to all who did receive him, who believed in his name, he gave the right to become children of God, who were born, not of blood nor of the will of the flesh nor of the will of man, but of God.
Revelation 3:20 ESV
Behold, I stand at the door and knock. If anyone hears my voice and opens the door, I will come in to him and eat with him, and he with me.
Jeremiah 29:11 ESV
For I know the plans I have for you, declares the Lord, plans for welfare and not for evil, to give you a future and a hope.
Hebrews 11:6 ESV
And without faith it is impossible to please him, for whoever would draw near to God must believe that he exists and that he rewards those who seek him.
John 6:40 ESV
For this is the will of my Father, that everyone who looks on the Son and believes in him should have eternal life, and I will raise him up on the last day.”
John 14:23 ESV
Jesus answered him, “If anyone loves me, he will keep my word, and my Father will love him, and we will come to him and make our home with him.
1 John 3:1 ESV
See what kind of love the Father has given to us, that we should be called children of God; and so we are. The reason why the world does not know us is that it did not know him.
John 15:13 ESV
Greater love has no one than this, that someone lay down his life for his friends.
Romans 8:12-17 ESV
So then, brothers, we are debtors, not to the flesh, to live according to the flesh. For if you live according to the flesh you will die, but if by the Spirit you put to death the deeds of the body, you will live. For all who are led by the Spirit of God are sons of God. For you did not receive the spirit of slavery to fall back into fear, but you have received the Spirit of adoption as sons, by whom we cry, “Abba! Father!” The Spirit himself bears witness with our spirit that we are children of God, and if children, then heirs—heirs of God and fellow heirs with Christ, provided we suffer with him in order that we may also be glorified with him.
There's more if you would like.