Job admonishes his “friends” by saying that he has heard all their speeches and he himself would maybe do the same to them and point out their failures as well. But Job adds one more thing to the mix. He tells them that he would also encourage them. 

Part of Job 16 is filled with specific details about Job’s afflictions. Job says that God is responsible for all the ailments that are afflicting him, what job doesn't understand is  that God is allowing it.  But Job begins to “see the light” and verbalizes what he already knows, that  he does have that advocate he was wishing for earlier. (Job 9:32-34) He talks about his advocate and intercessor. Sounds like he also has an understanding of the role of the Holy Spirit as the guarantor of salvation, the one who puts up security for him.

Job 17:3
"Give me, O God, the pledge you demand. Who else will put up security for me?

2 Cor 1:21-22
Now it is God who makes both us and you stand firm in Christ. He anointed us, set his seal of ownership on us, and put his Spirit in our hearts as a deposit, guaranteeing what is to come.

Imagine this...HIS hands were on us as HE anointed us with the oil of the Holy Spirit. HE has put up security for us. HE guarantees us what is to come.

Praise God, we "stand firm in Christ"!