To begin, I am reminded of 'The Fitting Room' by the general instrumentation and background melody, and I did quite like that; the instrumentation is, overall, quite nice, and the general feeling of this piece of music is nicely soothing, and the vocals all sound good.
The lyrics start strong, but there are a few unfortunate faults among them: the lines
'Strong winds to the left of you
And heavy rain to the right of you —
Still know that I am here'
seem a little strangely-worded, and might have been better as something like:
'Strong winds, do they blast your boards?
Do rains bombard you through the night?
Remember, I am here.'
Further, 'When darkness casts its terrible spell' seems a bit out of place, and might be better replace with something that better reenforces the oceanic imagery, such as: 'When you fear being overwhelmed/When black waves far above you swell...'.
With regards to the chorus, it has only a single line I might seriously advise altering: 'So come and walk towards me in faith and love' might have been better given as 'So come, I wait for you with arms opened wide'.
Finally, your final verses rhyme strangely, where the rest of the lyrics do not. This is a little jarrin. The word 'screaming' is, further, somewhat out-of-synch with what precedes it — 'waiting' and 'searching' feel like more quiet, pensive sorts of actions, though the latter could also imply franticness. The word 'screaming' is, however, random, and the word 'unease' in the following line, likely meant to rhyme with 'breeze', feels a little forced as well.
Overall, however, the piece of music sounds good, and the vocals and instruments work well together; I likely should not have been able to pay such close attention to the lyrics were they not provided, so what I have remarked is likely not near as obtrusive as the time devoted to talking about it makes it seem.