Upvote:1
The short answer is YES. Jesus was a continuing revelation of God the Father who was already perfect but in Jesus the perfection became even clearer. Righteous anger is part of being perfect. No anger when situation warrants it is a defect.
Picture a perfect earthly father whose son has been rebellious for years. Righteous anger is part of being a perfect father to teach the son of the danger of idol worship and the danger of following the way of the world, which leads to death. What perfect father wouldn't show anger after years of patient pleadings were not heeded by the son? See Proverbs 3:12:
For the Lord corrects those he loves, just as a father corrects a child in whom he delights.
Anger would be an appropriate escalation so the son's ear is open. When the son finally hears and repents, the perfect earthly father will forgive, no longer angry, nor will he bring up the past again PROVIDED the son does not do the dangerous deed anymore.
So to answer your question: Israel's experience of the Father in the OT is consistent with the image of the perfect father described in Ps 103:8 and in the prodigal son parable.
Let's consider the details and application:
- God gave plenty of warning to Israel by sending many prophets before the 2 exiles, exhibiting "slow to anger"
- After punishing Israel with exile, God did do what Ps 103:8 describes: "He will not always accuse, nor will he keep his anger forever" by providing return from exile (Isa 40:1-5, etc.) and by later promising the new covenant.
- When Jesus (the new covenant) finally incarnated to earth, Jesus became for the prodigal son Israel, the embodiment of God's forgiveness offer, provided they accept Jesus's status as God's Son, of course.
- To qualify, the prodigal son has to walk back to the Father in repentance, which in Jesus's time meant to come to John the Baptist for baptism, and after Pentecost to be baptized in the name of the Father, the Son, and the Holy Ghost.
- As long as this son does this first step of repentance, the Father's anger will turn into compassion right away and that's how in the parable the Father runs to the son before the son even arrives home (Luke 15:20)
- Please note that the parable is silent about the father's feeling before the prodigal son comes home. It is conceivable that the father was angry plus disappointed plus sad plus hopeful at the same time, similar to a perfect earthly father and similar to how OT pictured Israel's God!
- Even today, in the New covenant era, God is still angry at sinners who don't want to repent, so how God responded to the Old Testament Israel can still be a lesson for us, reminding us to avail ourselves of His divine mercy and walk home like the prodigal son.
Conclusion: God's character never changes as he turns from anger to mercy depending on our response. Therefore, Jesus's teaching in Matt 5:48 is consistent with how God the Father acted in the past toward Israel.