Irrevocable Gifts

Question: What limits does God have?

Per www.yourdictionary.com the definition of “irrevocable” is:
“that cannot be revoked, recalled, or undone; unalterable”

Let’s look at God’s power and what Scripture refers to as “irrevocable” . . .

Romans 11:28-36 (NIV):
28 As far as the gospel is concerned, they are enemies on your account;
but as far as election is concerned, they are loved on account of the patriarchs,
29 for God's gifts and his call are irrevocable.
30 Just as you who were at one time disobedient to God have now received mercy
as a result of their disobedience,
31 so they too have now become disobedient in order that they too may now receive
mercy as a result of God's mercy to you.
32 For God has bound all men over to disobedience so that he may have
mercy on them all.
[Doxology]  

33 Oh, the depth of the riches of the wisdom and knowledge of God!
      How unsearchable his judgments, and his paths beyond tracing out!
34 "Who has known the mind of the Lord? Or who has been his counselor?"
35 "Who has ever given to God, that God should repay him?"
36 For from him and through him and to him are all things.
      To him be the glory forever! Amen.

Optional additional reading: Philippians 4:13

References:

The following websites was referenced on Oct. 12, 2007:

http://www.biblegateway.com http://www.blueletterbible.org/

http://www.biblekeeper.com/

http://www.wordreference.com/definicion/irrevocable
http://www.yourdictionary.com/irrevocable