Clearly one’s repentance and water baptism would hold no significance without Jesus’ death, burial and resurrection.
The death, burial, and resurrection of Christ are at the heart of the Gospel. They encompass the finished work of Christ for our redemption. So those who believe on the person of the Lord Jesus Christ, and His finished work are JUSTIFIED BY GRACE THROUGH FAITH. Baptism comes after that.
ROMANS 4: SINNERS ARE JUSTIFIED BY GRACE THROUGH FAITH LIKE ABRAHAM
3 For what saith the scripture? Abraham believed God, and it was counted unto him for righteousness.
4 Now to him that worketh is the reward not reckoned of grace, but of debt.
5 But to him that worketh not, but believeth on him that justifieth the ungodly, his faith is counted for righteousness...
16 Therefore it is of faith, that it might be by grace; to the end the promise might be sure to all the seed; not to that only which is of the law, but to that also which is of the faith of Abraham; who is the father of us all,..
22 And therefore it was imputed to him for righteousness.
23 Now it was not written for his sake alone, that it was imputed to him;
24 But for us also, to whom it shall be imputed, if we believe on him that raised up Jesus our Lord from the dead;
25 Who was delivered for our offences, and was raised again for our justification.