The Nigerian defender, who won the African Cup of Nations earlier this year, is determined to help the Glasgow giants achieve success over Hibernian at Hampden on May 26 especially after midfielders Victor Wanyama and Beram Kayal were ruled out of the match due to suspension.
"It is bad for them to miss out because they are such big players for us, especially Victor," said Ambrose.
"They have been very important to the team, but it is up to us now to go and win it for them.
"We have wanted to win the league and cup double because it has been a long time since Celtic achieved that, but now we have another reason to go and try to win the Scottish Cup.
"They might not be on the park next month, but they have played a big part in making sure that as a team we will be at Hampden for the final."