The promise that he would inherit the world did not come to Abraham or to his descendants through the law but through the righteousness of faith.
For this reason it depends on faith, so that the promise may rest on grace and be guaranteed to all his descendants, not only to the adherents of the law but also to those who share the faith of Abraham (for he is the father of all of us, as it is written, "I have made you the father of many nations")--in the presence of the God in whom he believed, who gives life to the dead and calls into existence the things that do not exist. Hoping against hope, he believed that he would become "the father of many nations," according to what was said, "So numerous shall your descendants be."
O children of Abraham, his servant,
O sons of the Jacob he chose.
He, the Lord, is our God:
his judgments prevail in all the earth. (R./)
He remembers his covenant for ever,
his promise for a thousand generations,
the covenant he made with Abraham,
the oath he swore to Isaac. (R./)
For he remembered his holy word,
which he gave to Abraham his servant.
So he brought out his people with joy,
his chosen ones with shouts of rejoicing. (R./)
Jesus said to his disciples: "I tell you, everyone who acknowledges me before others, the Son of Man also will acknowledge before he angels of God; but whoever denies me before others will be denied before the angels of God. And everyone who speaks a word against the Son of Man will be forgiven; but whoever blasphemes against the Holy Spirit will not be forgiven. When they bring you before the synagogues, the rulers, and the authorities, do not worry about how you are to defend yourselves or what you are to say; for the Holy Spirit will teach you at that very hour what you ought to say."
That Abraham contintued to hope must have seemed odd, even to Sarah his wife. Who would ever think that this elderly couple could give birth to a great nation? A person without Abraham's faith would call this hope ridiculous. When a situation seems humanly hopeless, we should recall Abraham and Sarah.
Paul calls us to "look to Abraham and to Sarah," so that the Lord may turn our barren existence into a paradise like Eden. Abraham himself never witnessed how marvellous this promised land would be. He saw only his son Isaac. Abraham's faith had to reach beyond his own death to the future of his people. For this reason Jesus appeals to the example of Abraham for belief in the resurrection.
Close followers of Jesus would never say a word against the Holy Spirit, who is God's inspiring presence with us. We have a promise from Jesus that at any moment of crisis, the Holy Spirit will teach us what needs to be said.
Jesus asks his disciples to courageously bear witness to him, to speak about him and share his gospel with others. He promises that in bearing witness to him they won't be left without the help they need. When faced with difficulties, the Holy Spirit will teach them what they must say.
Sharing our faith today can be difficult because of the climate in which we live which is so often hostile to religion, and our Catholic faith in particular. With so much hostile and negative media comment against the church, we can be cowed into silence and invisibility. But we need to resist that temptation and share our convictions with others in whatever way we can. For this we have the promise that the Holy Spirit will be with us. As Paul says, the Holy Spirit helps us in our weakness. We need to keep on praying for the courage to be true to the Lord who gave himself for us, giving us life through his death on a cross.