SharePoint 2013 Installation as cluster

I'm planning to start Implementation of SharePoint 2013 with four servers as follows

SQL1

                        Failover Cluster

SQL2

SPApplication1

                                    I don’t know how

SPApplication2

All are running Windows 2012 Standard.

I want to use the Clustering, but I don't know How I configure two SharePoint Application Server as Cluster.

The SQL Severs is clustered and work fine.

I create one SCSI (NAS) for SharePoint Application and configure the same on Both servers.

Anyone can help me how to configure.

Regards

TeeJay