- The Supreme Court will decide the future

of Philadelphia's CatholicSocial Services Agency,

which is asking to followthe church's teaching

and not partner with same-sexor unmarried couples.

It's a high stakesreligious liberty fight.

- So what we arecontending for in this case

is that Catholic Social Services

have an equal right toparticipate in the public square.

And the way that they are participating

in the public square,

is by serving the most needy amongst us,

which are children without homes.

- Supreme Court told us

when they said that the constitution

requires same-sex marriage,

that of course the law will protect

those who have a differentview in their religious

or their moral conscience,

but in many cases that's not happening.

- But LGBTQ advocates, likethe human rights campaign,

say the case is about discrimination.

And a decision againstthe city of Philadelphia

would open a court Pandora'sBox for future discrimination.

Andrew Walker, a professor of ethics

at Southern Baptist Theological Seminary,

and a fellow at the ethicsand public policy center,

disagrees.

- Discrimination implieslocking people out,

a class of people outfrom an entire industry.

And that's not what's going on.

What's going on in Fultonversus Philadelphia,

is you have one adoption agency

that is wanting to operateaccording to its beliefs.

- Catholic Social Services

never actually turnedaway any gay couples,

and there's dozens ofPhiladelphia foster agencies

that work with them.

So Regent Law Professor Brad Jacob says,

they can't ultimately lose.

- They can adopt either way.

They don't need Catholic Social Services.

This is on their part and effort

to basically stamp out

anyone who doesn't agreewith their worldview.

- Court-watchers areclosely watching the case

with its hot button issues,

in the hands of a newconservative majority.

- We have a Supreme Court that is probably

for the first time as pro-religiousliberty in its design,

as it has been and perhaps thehistory of the Supreme Court.

- The big question with Fulton is,

how broadly will the Justices rule?

They could re-visit a 1990 case

that decimated the freeexercise of religion

and provide a substantialwin for people of faith,

or they could issue a narrow ruling

which would do littleto advance either side.

Heather Sells, CBN News.