1 Tim 2:5, 1 Jn 2:1-2, Heb 8:6, Heb 9:15, Heb 12:24, Mt 21:9, Mk 11:9-10
In the Old Testament, Job saw his Advocate in heaven. (Job 16:19)
Job 16:19 Also now, behold, my witness is in heaven, and my record is on high.
Jesus became the propitiation for our sins and he became our Advocate before God. (1 Tim 2:5, 1 John 2:1-2, Heb 8:6, Heb 9:15, Heb 12:24)
1 Tim 2:5 For there is one God, and one mediator between God and men, the man Christ Jesus;
1 John 2:1 My little children, these things write I unto you, that ye sin not. And if any man sin, we have an advocate with the Father, Jesus Christ the righteous: 2 And he is the propitiation for our sins: and not for ours only, but also for the sins of the whole world.
Heb 8:6 But now hath he obtained a more excellent ministry, by how much also he is the mediator of a better covenant, which was established upon better promises.
Heb 9:15 And for this cause he is the mediator of the new testament, that by means of death, for the redemption of the transgressions that were under the first testament, they which are called might receive the promise of eternal inheritance.
Heb 12:24 And to Jesus the mediator of the new covenant, and to the blood of sprinkling, that speaketh better things than that of Abel.