David Cameron made the comments when he was asked again about his faith and the article he wrote for Premier Christianity magazine at Easter.
On a visit to Bath on Tuesday the Conservative leader said: "I will be crossing everything, praying in all sorts of different ways, but mainly working as hard as I can to get across that message to people this is decision time.
"You can wake up on Friday morning with me as your Prime Minister, the country morning forward or you can wake up with Ed Miliband held to ransom, budget by budget, measure by measure, vote by vote in the House of Commons.
"That would be chaos for our country."
Mr Cameron received criticism from some quarters of the media for the Premier Christianity article he wrote at Easter because is failed to mention Jesus, the cross or the resurrection.
In the article he also praised the Church as a "living active force doing great works" for the poor and homeless, while once again urging Britain to "feel proud to say this is a Christian country".
In 2008 the Prime Minister described himself as a typical Church of England member who was "racked with doubts" over his faith which he said "comes and goes".
All the party leaders including Mr Cameron has continued to court the Christian vote while on the campaign trail, attending the black majority Redeemed Christian Church of God event last month, where he received a rapturous reception from the 45,000 strong congregation.
The Prime Minister told the congregation that he believed Great Britain's future Prime Minister was amongst the crowd.
On the same weekend Ed Miliband, an atheist, also gave a speech to a black majority church in Croydon where he said he would appoint a Global Envoy for Religious Freedom if he becomes Prime Minister, to address the ongoing persecution of Christians in the Middle East and North Africa.
In March, Nick Clegg told Premier that he thinks it must be "the most wonderful thing" to have a faith and would embrace it if it came his way.
The Deputy Prime Minister said he often accompanied his wife Miriam "with great joy" to Mass most weekends.
The UK Independence Party (UKIP) launched a manifesto focussing specifically on issues that matter to Christians.
The Valuing Our Christian Heritage document sets out where UKIP stands on a range of policies from family to overseas aid and marriage.
It states "we need a much more muscular defence of our Christian heritage and our Christian Constitution."
